Mainly it is convenience of not having to lug a cable and I have a bit of fear of breaking the interior of the usb-c, it feels fragile to me.
I have an iPhone with MagSafe, so I can use it while charging.
Using a charging pad without MagSafe and cannot use the phone while charging can also be a plus for some people, it forces you to not being constantly on the phone.
Does this count? https://www.theguardian.com/environment/2014/jun/08/the-dolphin-who-loved-me