What I mean is regulating a vice means putting some kind of guard rails on it. Alcohol is legal, but not for children, and many places have rules about how it's advertised, training for servers and not serving clearly intoxicated customers.
Should there be rules about gambling like, "you've lost $10k this month, no more betting for a while", that kind of thing. In recent years it seems like you can bet on anything anywhere, and it's being pushed very hard in advertising. Doesn't seem like there is much going on in the way of regulation.