Your LGBT example is misplaced, but the real question we should be answering is: what happens when you make vices illegal. The answer is that the black market p

Your LGBT example is misplaced, but the real question we should be answering is: what happens when you make vices illegal. The answer is that the black market provides them, with all the relevant disasters that follow from that. If you want to avoid having people gamble more than they would like, there is a simple way: have them set a limit (of their choosing) that they can change at any point, to take effect 1 week from now. Yes you need to coordinate the gambling across different companies, but gambling is already legally limited.