I...I don't think they're anybody's kid. I mean, I guess technically they'd have to be somebody's kid, since that's how things work but-ow! Hey!

[Ron's Chimchar pokes him sharply, before chattering at him.]

Okay, maybe I was kinda getting off track, but you didn't need to jab me in the head.

So, um, back to what I was actually trying to say, I don't think they're a lost kid. If they're like Frederick here? They're supposed to be you Pokémon partner. I'm kinda fuzzy on the exact specifics right now, but there's a book in the bag the crazy lady gave us that explains things.