If everyone decides to be honest in the gambling industry by not using illicit money to gamble by not using gambling platforms as means of money laundry and also by not trying to cheat the gambling companies.
Generally if everyone decide to be morally right, there won't be any need for your personal identity. It because humans are difficult to control and will always want to extort a given system that is why kyc is implemented in gambling and other related Industries still kyc it is been abused by the regulators.