This is a tricky situation, because if we let him use our identity to bypass KYC, it would be like we're supporting his gambling and acting like a hypocrite. On the other hand, it's money we should be claiming, especially when it's a significant amount. If I were in a situation like this, I'd let him use my identity, but I wouldn't let him use the winnings. I mean, he's still a minor and he's gambling with my money. He'll have to accept the consequences of me withholding the money, and I'll probably scold him for not being able to gamble at that age.

Children like this need to be dealt with firmly. If he gambles with his own money and he's old enough, that's not a big deal to me. But if he's still in school and already dares to gamble with money he should be using for more beneficial things, that's also unacceptable. So, rather than making things worse, it's better to take firm action against him early on.