There should be an age limit at least 18, most of the crypto casino there's always a confirmation if you are 18 or above when signing up to their website.
But we all know that anyone can confirm that they are 18 even though some are not and it's pretty dangerous since they might be addicted to it and won't stop playing.
ya.ya.yo!
There is no way to confirm the age of gambler on the gambling site unless the KYC is mandatory at the time of signup. You signup on the gambling site and submit your documents. The Site verifies those documents and issue you the password to login and play. No site does that because the main purpose of the gambling houses is to make money, no matter who is playing at their site.
I do agree, gambling sites are more focused on gathering more players than having a verification of what age their players are,
And as far as I know, gamblers in online is much preferred to play on gambling site without KYC, they find it less hassle and their identification is safe from the possibility of making it into public.
Same, I think those casino owners doesn't even think of the age of the players, all they care is their business growing. They just put the age requirements because it is needed, or the government requires them to. But nope, they don't really care. Specially when you are gambling online.
They do care for the KYC, otherwise, they will not include that in their site and in the TOS.
Some site would prefer the users to pass the KYC first but they also allow even if you don't pass, it's an option for you but you need to ensure to yourself as a gambler that you are 18 and above when you are gambling, that's the only thing they can do as they can't see us.
It's actually us who didn't care.
KYC is really a hassle for me too when I'm using crypto, so yeah I prefer gambling sites without one. I think its the same with other gamblers too.
Of course, that's the reason we are gambling in crypto space because we like to preserve our privacy.