Of course there is nothing wrong with gambling.
As everything in life "the dose makes the poison", meaning that as long as you don't exceed yourself and get everything under control, so it does no become an addiction, you should be fine (same as drinking, or any other habits that can go wrong, if you loose yourself).
Control your decisions, control your life.
Yes ,and this is on the peoples completely discipline how he handle emotions to control in the most situation .Gambling is a big temptation in a people to have fun and its attractable money to earn when you win in a game but not as simply in the game .Having a limitations will let you control in your mind while playing if you keep focus and don't break it.