For a casino not to request KYC information is almost impossible, only decentralized casinos, all casinos require KYC and that was something that was implemented in a mandatory way to ensure all privacy and with multiple excuses, such as security, so that they don't hack you, blah blah and blah, we all know that a casino can be hacked and they can steal, there is nothing safe there, if you look for a centralized casino without that requirement I would tell you that it is impossible at this point.
There are so many casinos that will not ask for KYC but at the long run, they will always ask for KYC even though it's a simple one that will will require you to submit your identity only without going as far as asking for proofs of location r nationality. Privacy is what we should ensure we stick to because it's not every casinos that we have to do KYC since their are many that will always sell our information to the public and can be used against us in the future. Maybe the government may make this process more difficult for us in the future by the time they start fighting against decentralized casinos.