It does not matter how you look at it, KYC verification is inevitable. Let's look at how KYC are enforced and when it happens to understand this. Example : A casino will start out small with virtually a few hundred gamblers and they want to stand out from their competition, so they announce that they do not ask for KYC verification.
This goes on for a few years and they gain MANY gamblers, but as they grow... regulators start to notice them and they track them down and confront them with options... "either implement KYC or get shutdown" .... so suddenly you see sites with no KYC requirements, starting to ask for people to verify their identity.
So in conclusion : They start with No KYC requirements and are then forced to implement it.
Because regulators noticed casinos, casinos started implementing KYC for their members so everything changed. Those of us who often gamble also have to be aware of this, so we need to prepare the documents if the casino asks us to do KYC at any time. And we also can't do anything when the casino asks us to do KYC. But we as gamblers also have the choice not to use that casino and move to another casino that provides more comfort because gamblers play at that casino to get comfort too.
When we move to another casino for the reason that we don't want to do KYC, the casino will not force us to stay at the casino. The casino gives us the freedom to continue using the casino for gambling or move to another casino.