If this word gets out, and it will do.... Apple got loose money, since we can all phone up, and say "we didn't know what we were doing".....
Not if Apple makes a very clear and public announcement that all sales are final. That if you hand device to kid without turning on restrictions and a credit card on your account and they buy a small fortune that's on you not them and there will be no refunds.
There are ways to do it that won't come off totally d-bag and its well past time.