Biometric identification technology is indeed very effective, the system detects it in just seconds, I haven't heard of anyone who can fool the system. Too many gambling sites and minors will definitely find other solutions so they can gamble, the most to be considered is their connection and the role of parents who should monitor whither they access website, restrictions that must be increased.
It should be understood that all the laws on the collection of personal data only benefit the states, but not ordinary citizens.
Just imagine what will happen when there will be a massive leak of biometric data of the users who provided it. This will be an emergency situation, because using this data you can sell property, take out loans, sign various contracts.
That is why I have always been against this initiative.