What happens is that it is a sensitive issue, obviously it is as the colleague has said, to some casinos that are highly reputable and very trustworthy if they care about money laundering and therefore use KYC, but it is well known that some casinos that are mostly relatively new, can be in this business camouflaged by the platform and take advantage of a large number of people and players who are very active in the game, so all these things are sometimes good for KYC, but at their Sometimes it is risky, because an apparent KYC can reveal everything about a person and make them even try on their life and leave them there on a silver platter to extort them or any kind of thing.
Actually no one force you to play on new casinos

why we need to play on new casinos when we already know the trusted and reputable casinos that operated until now? it's similar like centralized exchanges. I didn't want to touch any new casinos even though they have an interesting promotion or high bonus because any sites can offer to good to be true, but only few sites are reputable and don't lying to their customers.
I still stick with my old casinos and I never regret with my decision until now.