Gambling is a big problem just like the addiction to cigarettes and alcohol. quitting these behaviours requires a lot of commitment from the victim and goes through several processes before one can actually be free from the addictions.
Actually it is not the real problem that we need to face but the people who are abusing on how it goes.
Gambling is made for entertainment and for the house to profit but there are people who are looking at its perspective on a different way.
And that's why the problem is existing, when they are digging too much with gambling and treats it as a source of living.
That's why we should not really get into it too much. You don't have to quit for good if that is not harming you even if you play.