That's the bad side of online gambling, you can't really control the users you get, even with the under 18 rule, teenagers can just lie and still get access to gambleing features, I think they have to get more strict and find better ways to keep teenagers off gambling sites, maybe by taking some birth certificate as part of their kyc verification, I think that would reduce the amount if teenagers in online casino.
what I do believe is that why do gambling site really cares about who will gamble when they are targeting as many depositors and players they may get?that 18 and up rules is just written but they don't wanted to strictly implement that and will let those youngster lied in their details because they will only face the problem once you won and need to withdraw lol.
Obviously, I think what you are saying is a fact, we must remember and must understand that after all gambling is a business for casinos where the main thing they want is to make a lot of profit, and they will only be able to make a lot of profit when more gamblers come and engage in gambling and also when gamblers treat their gambling activities impulsively, so of course agree and agree with you that most likely casinos will not care too much about how old someone is, the point is if they have money then they are allowed to gamble by casinos.
It is also a fact that 18 years old is just a measure of the age at which a person has entered the adult phase of their life, but it is nothing more than a possibility, or it means that not everyone who has passed the age of 18 years old can think maturely, The evidence we can see is that there are still quite a lot of adult gamblers who experience various downturns in gambling and all of that happens because they treat gambling in the wrong way where they cannot think rationally to really be able to make wise decisions and the best for themselves, meaning that not everyone who has passed the age of 18 is mature in thinking.
So if we talk about gambling then obviously the main point is that anyone who can treat his gambling activities properly and correctly without any elements that can endanger him then he can gamble regardless of his age, and also now I see quite a lot of online casinos that can be accessed without having to do KYC first so this situation makes it easier for minors to get involved in gambling.