A lot of people have a gambling problem these days but its also logical because gambling can be highly addicting like a game.
Most likely this is because of the feeling you have won and you want that again without knowing it you can addicted to it.
Overall I'm thinking self control will help the most people.
Everybody knows 'drugs are bad' and still there are plenty of addicts. Everybody knows cigarettes are bad for you and still there is millions of smokers in this world. Just as with those, everybody knows that the house always wins in gambling.
Yes, everybody believe themselves to make big profit by beating the gambling houses. This is one of the reason even after knowing the truth about gambling many people are still continuing their gambling and getting themselves into problems.