Hmm. You're right. You're perfectly able to control yourself.

...I don't think you'd need to go that far. Just don't bring a lot of money, that's all. If you lose track, you'll just stop when you run out.

...really, if anything, I should be worrying more about the fact that gambling can bring in some shady characters. I think you'll be fine, but you're probably more likely to be hit on by creeps than you are to spend too much.