I wonder what the hell would it be for someone to hand over false documents? Does this person have any idea that he is committing a great crime? if the person is afraid of KYC and doesn't feel comfortable then it is better for the person to look for another site that does not ask for KYC than to deliver false documents. I also don't understand what's on the minds of those minors who like to play in casinos, where do they get so much money to play? And how can parents not find out that their underage child is gambling at the casino? and something I don't understand
People pass fake identity on KYC simply because they do not want to give their own identity because of various reasons. Generally they try to do it so they will have the possibility to be eligible of withdrawals whenever the casino suspects their account or they won some good amount of money wherein KYC is most likely to be asked.
Minors have their own minds, they may get it from their parents or personal income regardless of their age. Some parent won't always be able to monitor their child's activity on computers specially on activities using their phones since it not really easy to do it.