And it's not obvious that you'll lose money gambling. I believe you are mainly talking about being addicted to slots or whatever. If you do sportsbetting, Poker or anything else that needs some sort of skill and knowledge it is not obvious that you'll lose money.
That still wont change anything, in the end you are going to relly on your luck. If you are not meant to win then despite having all the experience or whatsoever, you wont win the game. It is as simple as that and yet people cant swallow it, they thought that when they have these experiences they are going to turn the table