The casino will also not use data on KYC to commit a crime because if they manage the casino properly they can get huge profits so it is impossible to commit a crime by utilizing user data from KYC.
As crypto casinos develop, I am also sure that each of these casinos will also impose KYC requirements on each of their customers in the future.
If you provide KYC data to the wrong casino, there is no guarantee that your data will be safe, like you join a new project but you don't do any research before submitting KYC data. So make sure you provide KYC data for reputable, licensed and trusted casinos.
The implementation of KYC requirements at each casino is due to licensing regulations, so you must understand about the statement and not because the factor of the development of casinos will add KYC requirements in the future.