A few years back casinos started to roll our KYC restrictions for withdrawals just due to the government policy changes regarding AML so they go no choice but to follow the regulations to run their business and then users also thought having a license is kind of trustworthiness even though it isn't true so every new casinos just focused on what people wanted. But people still love to play at a casino where KYC isn't mandatory but I don't think we have options to do that.
It's impossible and can be done and a lot of people will prefer it if it's legit and there's good reputation around the casino or the owners.
It's the same way people appreciate hyperLiquid for trading in crypto without KYC aa opposed to the many CEXs we have that require KYC before you can do anything tangible with your account. The same with gambling too. If a new platform emerges that is reputable and solid in terms of how they operate and no mandatory KYC, I'm sure almost everyone will flock over there.
I think a few years ago we had an anon betting platform called DirectBet iirc with no KYC.