Chain wallet for a 10-year-old?

It's kind of sweet when you see little kids with wallets. No money, maybe a school id, hopefully a library card. I thought it was a bit much, though, when the 10-year-old checking out the stack of DVDs had one. Though, I suppose you could make the point that her was using it as it was originally intended before it was coopted by posers trying to look tough. Motorcycle riders had them so that their $$ won't go flying down the highway. So maybe the kid does some serious BMXing and needs such a thing.