Profit is the main reason to do gamble and I think people get started with gambling for fun but when they make a lot of profit for just to be lucky than gambling is looking more nice but my reason is only for profit.
Maybe that is one of the reason, the moment they enjoy winning they suddenly change their goal in gambling, they would only understand if they keep losing again, it's a game of chance and there are times where we are lucky so we can expect that we can win but in the long run we will not succeed.
That's proven by me, I know how to control now because I feel like I'm fooling my self continue to chase my loses which is impossible to win it back.