Losing money in gambling is not fun and no one wants it. Even some gamblers says they are playing to entertain themselves or to relieve stress but if you didnt win when you play (even once) still it is depressing especially if you didnt use a spare money.

I dont gamble with huge capital or money that I cant afford to lose, im prepared for the outcome since its my choice to gamble even I know its risky. Maybe for gamblers that are well-off, money is not an issue so they can gamble regardless of how much they win or lose as long as they are having fun.