OP: I grew up in Las Vegas. I also own a casino. And I like to gamble.

So there are three questions here.
(1). Is it wrong to gamble your own money? Of course not. But it's stupid to gamble if you can't afford to lose what you started with. If you don't care about losing $100, then go and gamble it. If you win $1000, you'll be happy. If you lose the original money, you won't care.

My advice in this situation is that if you double or triple whatever you were comfortable starting with, you should leave the casino immediately.

(2). Is it wrong to gamble with your family's money? Yes.

(3). Is it wrong to operate a casino? No - as long as you are ethical about whose money you take. I would take the $100 from the player in example #1, because I am risking much more than that. I would NOT take $100 from player #2 because I don't have any interest in taking money from someone's family.

There is another question. What is your definition of "wrong"? If you are not able to think for yourself and you just do whatever the bible or the quran tells you, then almost everything is "wrong". If you consider what is good for you and what is good for your family, you should be able to make decisions for yourself like a big boy.

So if you want to put on your big boy pants, you should be able to decide from one situation to another what is right or wrong for you.

Stop trying to judge other people and their actions. You don't even know what you want for yourself and you are in no position to decide if something which may be wrong for you is right for others. You don't know anything. You are not better than anyone. Just decide what you want to do. And when you make stupid mistakes, learn from those mistakes, but don't imagine that you are better than other people just because you learned something.