If there were no KYC system, many people would have shown a lot of interest in these games and would have played them. If there were a KYC system, many casino players would have turned away after seeing it. Many people come to play the game for a short period and are not interested in completing KYC.
As a result, ordinary casino players seek KYC-free sites where they can play freely and come and go. Many players want to protect their privacy, but they are not interested in doing KYC when they come to play such games.
BTCGOSU can help gamblers to easily filter KYC-free casinos and have a list of such casinos before picking one to use. The site also has written many reviews that can be used as references for gamblers in their researching and selection making process.
The list is available and there are no-KYC casinos to choose but it's like centralized exchanges which can change their ToS and policies in particular KYC policy any time. Gamblers as users of any centralized online casinos must be aware of this risk and have proper fund management on online platforms. They can enjoy no KYC on online gambling sites but always have plan B for their exits.
https://www.btcgosu.com/no-kyc-casinos/Reminder: do not keep your money in online accounts.