In fact the players have various motivations to do it some do it for fun to pass the time, others to earn extra income some are professional players but it must be a free personal choice
Even if they do it for fun, that doesn't mean they can use their money to gamble. They have to pay attention that there is a big risk of losing at gambling and if they can't control themselves, they can lose a lot of money, which has been proven by the many people who lose at gambling. If you still want to play gambling, you need good control not to lose much money. Playing gambling is a choice; no one forces you to play and let other people play.
An experienced gamblers will common eye the little things we out in consideration while gambling and concentrate on his bet he's playing, that alone takes their time enough and they are much satisfied in such, it's not every gambler that always focus on the amount he loose from the one invested and the games he won, thinking about that alone will be a big discouragement for some people and that's why they don't rely on what they get through gambling for their sustainability, they always have their own means of income they are fine with.