So the minors are smart enough to fake their online identity? Really? This seems suspicious to me.
So they use their parent's debit/credit cards to gamble? Can't their parents view the transactions on their bank accounts? Can't they reverse unauthorized credit card transactions? If your kid is using your credit card to gamble, you are a lousy parent.
This new KYC regulation won't solve the problem. The real problem is the unregulated casinos that don't require ID verification. Who is going to stop those casinos from accepting underage gamblers? Another part of the problem is the aggressive advertising of casinos and sportsbooks.