I have had people telling me "you'll regret not having kids when you grow up" all through my 20s, and now that I'm in my 30s I've only had more and more people ask me when my spouse and I will be trying for kids because "it's almost too late"
Since medically transitioning, a disturbing number of people have decided to butt in and tell me I should be storing sperm "for when you decide to have kids" and if I don't, then I won't be physically able to have them.
I've even had a couple of people (mostly one specific person) telling me after I inform them I had a vasectomy over a decade ago and my spouse had a tubal ligation at least 5 years ago, that vasectomies are reversible and "it doesn't have to be your wife" (my spouse is NB but seemingly nobody except the Trans people we know seem to remember that)
I find it funny that people with kids keep telling me specifically that I will regret not having kids and giving me their opinions, yet never once have I gone out telling new partners NOT to have kids.
Also hilarious is how people with kids get defensive about their decision and go on about how people without kids make it their whole personality.
And its always fun to guess if I'll see "well you people are creepy for making this one page I have only just found and decided it's all you ever talk about also here's an anecdote about how much I totally love my kids and never think like this" type comments before opening the page.
And honestly with so many fascist governments pushing us to have more kids for their meat grinders, climate change making the planet hostile for life, and everything being more expensive, it's a wonder anyone would voluntarily have children today.