People Categories gambling as bad based on their experience,  and there are some others who see it as good just as some other persons are seeing it as bad. There is always a two sides to almost everything only that most time one side is more amplified than the other.  Bad can even be relative if we are to even put that into consideration,  an experience you may term bad, some other person may teem it good but they were almost same experience so I will say gambling is what you see it as, it can be bad, good and also a form of entertainment,  for some others a source of income so choose your point of view and live by it that way.