I usually ask the kid I'm doing business with, where their parent or guardian is, if I'm dealing in anything above 20 dollars. I will ask the adult in charge if the transaction is "ok". We don't ignore kids, they are our future in collecting, we treat them with respect. We just want to make sure their guardians are "ok" with the transaction. Knock on wood, we have never had a problem, in fact, we have some long time buyers because of our policy.