They do. It's like...both for training purposes, but also for fun? Like how we'd train back home, except they have a lot more than just one power they can use.

[But all of the complexities that come with battling and moves and whatnot is a whole other topic in and of itself. When Ochako turns to pointing out his naming bias, though...Izuku immediately turns red and puts a hand over his face, gesturing with the other as if to try to explain himself before he can even think of what to say.]

Y-yes, but it's a fitting name, I promise!

[IT'S...NOT ENTIRELY since Mighty is hyperactive and childish but maybe he will grow to fill his All Might shoes one of these days...]

But, um....well, they're like pets, but it's closer to call them companions or partners. They're a lot more intelligent than a normal animal...like, if you speak to them or tell them something, they can understand even if they can't talk back to you. The gyms don't give them away, you have to befriend or catch them yourself.

[A pause.]

You could have caught one of those Starly back there if you really wanted to, but...I don't blame you for not wanting to.