1. Possible. But that depends on how far the government will put pressure on these casinos to pay for additional tax. But I'm sure the burden will not be passed by customers as it might result in not using their service.

2. All regulated casinos require KYC even way back before since they are protecting their customers too against possible fraud. And playing in online casino wherein all is private and fishy are more prone to scam (not talking about crypto gambling sites).