That's right, when we select yes to the question of whether you are +18, then all responsibility lies with the registrant and it is no longer the casino's responsibility.
But what I mean is if there are casinos that require players to submit IDs when making withdrawals and many players are deceiving themselves when registering.
If the casino is not so strict on the rules as to request identity, of course the checks are not carried out. It's not the casino that's at fault, it's those who are not yet +18.
You’re right about the responsibility is already on us once we fake the ToS. And I doubt casino can fully restrict minors to play if they have access to valid of an adult. In addition, there’s also a lot of services that offers KYC verification for problem like this expand the problem of the casino when it comes to verification just to avoid minors.
Overall, it’s dangerous to play while breaking the ToS because there’s a point that casino requires enhance KYC that ask for bank statements and other sensitive info which you will have a problem if you are gambling illegally.