Because no legit casino will ask for kyc when the terms and conditions states their decentralised.
So why are they so particular about privacy and no-KYC casinos to the point of abandoning the respectable casinos that would not scam to try those they knew little or nothing about to the point that they lose all the money to them? To make it worse, for those of the casinos who would stay, the No-KYC casino over time may switch to KYC casino, is that not using their heads?
For many millions of people around the world, this could have a significant impact simply on the quality of their life. For example, a player hides his passion for gambling from his employer, and he, if this contradicts the employer’s position, may be fired. Sometimes people hide their gambling habits from their immediate family, such as their wives. If she finds out, there will be a scandal and such a player will no longer be able to continue playing calmly. You can also add such a limitation as social attitudes in the society to which the player belongs, for example, religious attitudes and condemnations of gambling. In general, there can be many such factors. But the person wants to play. So such a player has to maintain anonymity.
And accordingly, he has to ignore the casino that necessarily requires KYC. And this has become more and more difficult lately.