this post was submitted on 19 Apr 2026
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[–] tanisnikana@lemmy.world 94 points 6 days ago (1 children)

A child knows the adult drink is coffee.

A teenager knows the adult drink is alcohol.

An adult knows the adult drink is water.

[–] CovfefeKills@lemmy.world 4 points 5 days ago

I like this and the "when you wish you were young" answers the most

[–] Rivermoonwolf@lemmy.world 14 points 5 days ago

Apparently it depends on skin colour and the severity of the charges. /s

[–] JennaR8r@lemmy.dbzer0.com 10 points 4 days ago

Self-sufficiency, responsibility

[–] AstralPath@lemmy.ca 3 points 3 days ago

For most people never.

Petulant middle-aged children as far as the eye can see with few exceptions.

[–] DJKJuicy@sh.itjust.works 16 points 5 days ago (1 children)

Never. There is no line to cross, no milestone, nothing.

You will always be the same entity you are now. You should always work to improve yourself, but the stream of consciousness that is "you" is always going to be the same you.

Every day you wake up 1 day older and have 1 more day of accumulated experience. It's that accumulated experience that makes people think you're an "adult".

If you really absolutely need to assign a binary "I'm an adult" label, I think it's the day you realize that there is no such thing as an adult and all the people you thought were adults and therefore could handle adult responsibilities were actually just making it all up as they went, the same as you are doing right now.

[–] 4grams@awful.systems 4 points 5 days ago* (last edited 5 days ago)

Well said. At this point in my life I can say I am an adult, but I can’t say when it happened. It was just a dawning realization one day, that was oh, “I’m the adult now.”

[–] Kolanaki@pawb.social 36 points 6 days ago* (last edited 6 days ago) (1 children)

Biologically: After pueberty.

Socially: Around 31.

Realistically: Never.

[–] neidu3@sh.itjust.works 11 points 6 days ago

43, here. Based on anecdotal evidence I'm disputing your second statement, and confirming the third.

By the way, imma be a crane driver when I grow up.

[–] stoy@lemmy.zip 30 points 6 days ago* (last edited 6 days ago) (1 children)

My definition of an adult is simple:

"To be an adult, a person has to understand when it is appropriate to be childish"

[–] wreckedcarzz@lemmy.world 8 points 6 days ago

Me: like right now! Look at that belly, I'm gonna rub it! Does it tickle, does it tickle? You can't hold back the laughter forever!

The surgeon: sir please get out of the operating room

[–] Robin@lemmy.world 28 points 6 days ago

It's a spectrum

[–] daniskarma@lemmy.dbzer0.com 7 points 5 days ago (1 children)

When you are legally considered that in your country's law. Any other distinction is fuzzy and unlikely to be really useful.

[–] foggianism@lemmy.world 1 points 4 days ago

No guarantee that you are gonna be an adult once you reach a certain age treshold, though. There are many children in grown people's bodies out there.

[–] BeardededSquidward@lemmy.blahaj.zone 17 points 6 days ago (3 children)

Some never become adults, becoming an adult to me is self-realization. That you have the ability to think and make decisions with input on your own. That you are self-capable of change in your life. It's accepting you have responsibilities outside of just yourself. I feel hat's part of it.

Was about to say something similar. There's no real moment. It's not turning a certain agem it's when you realize you are a sum of everything you've done, your faults and your wins. When you realize how silly you were as a teenager and are glad you've moved on. No date, but you'll know when you already are.

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[–] BaraCoded@literature.cafe 6 points 5 days ago* (last edited 5 days ago)

When they start thinking about the consequences of their actions, and act accordingly instead of following pure impulse.

[–] flubba86@lemmy.world 2 points 4 days ago

I remember one time someone told me "being an adult is when you realise you can cook yourself bacon whenever you want, and just eat it, and nobody will stop you".

[–] Drusas@fedia.io 18 points 6 days ago (3 children)

When you are at the point where essentially everything in your life is up to you. You make the decisions, you deal with the problems.

[–] AskewLord@piefed.social 3 points 5 days ago* (last edited 5 days ago)

And that's why many people never 'grow up'. They refuse to take responsibility for themselves.

Blows my mind how many highly educated professionals in their 30s/40s think they are hapless victims and everyone else is the problem in their life. And they absolutely refuse to believe they have any power over their personal choices. As if the hand of god is forcing them to overspend, drink excessively, and otherwise hate their life.

I think my favorite is when they blame other people for 'upsetting' them by merely existing in a different way than they do...

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[–] CultLeader4Hire@lemmy.world 12 points 6 days ago

I think it’s when you decide it, plenty of children walking around in grown bodies paying bills but also letting the whims of the world carry them with their current never taking a stand and steering their own lives. To be an adult is both a choice to be free from undue influence but also to be fully responsible for your own actions.

When I was in college (so maybe 20 or 21 years old), I asked my mom when I would start feeling like an adult. Without missing a beat, she said "I dunno. If you find out, let me know!" <3

I guess I started feeling more like a "real" adult when I started working full-time and rented a house instead of an apartment, though now even that pales in comparison to when I finally purchased my own home. Each phase of life feels more "grown-up" than the last, with new perspectives, greater understanding of my relationships with God and people, and matured confidence going into the new phase's challenges. And yet I'm still me at heart--as I like to call it, "a big kid with bills." I am very blessed.

[–] DarkFuture@lemmy.world 4 points 4 days ago (1 children)

When all your dreams are dead.

[–] notastatist@feddit.org 2 points 4 days ago

Nice, already grown up after my parents didnt buy me the console I always wanted when I was 9.

[–] tigeruppercut@lemmy.zip 4 points 5 days ago
[–] AutistoMephisto@lemmy.world 4 points 5 days ago

Well, in the legal sense, I suppose it has to do with contracts and contract law. Some time ago in the US, it was determined that 18 was the legal age for adulthood because by then a person would be old enough to understand the terms of a contract and hold to those terms. Marriage is a contract. Military service is a contract. Getting a loan/mortgage is a contract.

[–] ThatGuy46475@lemmy.world 6 points 5 days ago (1 children)

You become an adult when you wish you were young again

[–] nooch@lemmy.vg 4 points 5 days ago

When I was 10 I wished I was 7 again, so idk about that

[–] BlameThePeacock@lemmy.ca 12 points 6 days ago (1 children)

When they start acting like it.

[–] trxxruraxvr@lemmy.world 13 points 6 days ago

Which (to me) mostly means taking responsibility for their actions and taking care of the responsibilities they have.

[–] Hossenfeffer@feddit.uk 9 points 6 days ago (1 children)

I read somewhere that a parent's job in life was to make themselves unecessary to their children.

Parent does everything for a baby, but as the child gets older a parent teaches them to do more and more stuff for themselves: getting dressed, tying shoelaces, reading, good study habits, time management, relationships, cooking, good financial practice, etc. Eventually the parent has nothing left to teach the child and is no longer necessary (though hopefully their company is still appreciated). That would be the point at which the child becomes an adult.

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[–] Sunsofold@lemmings.world 6 points 5 days ago (13 children)

Adult is essentially like age-based gender. Different cultures say adulthood starts at different ages, physical markers, or after some ritual transition, and assign adults a certain role in society. Some people identify as adult or not adult regardless of what their culture assigns to them. It's all part of the arbitrary, usually unspoken rules each culture defines for itself.

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[–] GreenKnight23@lemmy.world 3 points 5 days ago

for me it was when I was responsible for more than just myself.

I'm responsible for my spouse, my kids, the team I managed, etc.

I have to say, it's not worth it 🤣

I'm lucky enough to be in my 30s and still have grandpa and his wife (my grandma by all accounts, but she doesn't want to be called that because it makes her feel old). I was visiting with them recently and said "I still feel like a stupid teenager. I don't feel like I'm an adult that knows what they're doing, I'm just doing the best I can" and my 83 year old grandpa replied "sweetheart, I still feel like I'm in my 20s, I don't think anyone ever really figures it out, no one knows how to be an adult".

So i think the answer is: never

[–] whotookkarl@lemmy.dbzer0.com 6 points 6 days ago

When there's a bump in the night and you're the one responsible to go find out what it was

[–] brownsugga@lemmy.world 8 points 6 days ago (2 children)
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[–] Libb@piefed.social 5 points 5 days ago

The moment they accept they don't know everything/they can be wrong.
Something that can happen at any age bracket, imho...

Thinking about it, that may also mean quite a few people will never turn adults no matter how old they are.

[–] hanrahan@piefed.social 3 points 5 days ago
[–] bsit@sopuli.xyz 6 points 6 days ago

When they no longer feel a desire to argue with reality that they have faced fully (no lying to oneself) and have accepted that everything is temporary.

And they understand that the above is not a call for nihilism and resignation, but inner peace.

[–] Fleur_@aussie.zone 1 points 4 days ago

18 years old, no need to complicate it

[–] RoddyStiggs@lemmy.blahaj.zone 5 points 6 days ago

EXACTLY MIDNIGHT LOCAL TIME ON THE CALENDAR DATE EIGHTEEN YEARS SUBSEQUENT TO THEIR BIRTH AS RECORDED ON A LEGAL BIRTH CERTIFICATE

/s

[–] taiyang@lemmy.world 6 points 6 days ago (1 children)

When the prefrontal cortex is mostly formed, somewhere around 25 to 30. It's the part that helps inhibition, like controlling your emotions and impulses, and also the last part of the brain to be finished. It's quite downhill from there!

[–] pmk@piefed.ca 6 points 6 days ago (2 children)

That lack of inhibitions can come back late in life. I've worked with many patients with frontal lobe impairment, and it always makes me wonder if the damage made them like this, or if this is what they were hiding before. Like, one old lady who always appeared so classy and proper, and then now all she talks about is poop. Every sentence is about pooping.

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[–] RoidingOldMan@lemmy.world 6 points 6 days ago

Around adulthood.

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