Where I live a lot of kids have bank accounts, but of course it would be silly to put a lot of money there. But can’t you deposit cash into bitcoin things and use them for payments or gift cards? I’ve seen those on some gambling sites.

And if you say “well they can steal their parent’s credit card,” how would that not equally apply to a parent’s photo ID or anything else necessary for age-verification?

Photo ID apparently needs a face scan too, it’s not enough to just have the ID. Then you get into what if they steal the ID, fool their parents and whatnot which… I don’t think that’s as much of a concern tbh