It is really hard to stop people from doing things they like or addict. Gambling is very easily addictive and the reminder is always "Gambling responsibly" while we know gamblers struggle to control their actions and avoid gambling addiction is not easy.
I agree that treating addiction isn't easy, but you have to find many strategies to do it, the first is what you said responsible gambling starts with simply controlling money, If the person spends all their money, they'll want to keep gambling Some people run out of money and sell what little they have Some start stealing money from others, lending money, and that causes addiction.
Addicted people have a hard time controlling their emotions, They just want to gamble, and they do it more and more each time, It's difficult to find themselves in a situation like this In a casino, the more you bet in the long term, the more you lose But it's not the casino's fault, it's the person's fault if they don't control themselves.