The assumption that someone goes to the casino to win money is just a dream that cannot come true.
Going to the casino is just for fun and if you are lucky you can get some money from the win so expecting winning money from the casino is not a good thing and should not be done by gamblers.
Working in a casino is a profitable job, friend, there you can work full of entertainment and earn some money without having to think about the risks, but if gambling is considered a new job, it is not fun because there is a risk where you can always lose your money at any time.