https://ritchie.page/blog/i-reject-artificial-intelligence/
In this piece, Ritchie writes (among many other things):
"It sounds childish, but when you’re disabled, the feeling of being able to do something you thought you couldn’t is extremely empowering."
I think this both isn't childish at all, and also isn't specific to disabled people.
The reason, I believe, this can come across as childish is simply that there are so many things small children do that they've never done before and that they weren't aware that they could. Some of them require practice and effort, though definitionally in proportions that isn't out of reach for a child. So kids get to have that feeling of empowerment *a lot*.
I'd go so far as to say that adults only stop having it if they stop challenging themselves. For most of my adult life I've had it pretty regularly.
Obviously I can't be *sure* that this isn't a disability-specific thing, since I've been disabled my entire life, but it seems to me that able-bodied and -brained people get that feeling too. I've taught programming and maths to adults (most of whom were not disabled), and seeing how *proud* they are when they've managed to master something complex and difficult is not to be trifled at! In fact, I think that one of the ways to keep students motivated is to try to lay out a progression so that they keep getting that feeling intermittently.
But there is one way where it is perhaps more important to kids and the disabled, for the simple reason that both kids and disabled people are quite aware that they are surrounded by people who can exert power over them at will.