Online gambling has increased addiction very rapidly. It's easier then ever to jump out of bed, go on yourlatop and place a few bets. I have a few friends that are heavy gambling addicts and they all ended up in debt and had their lives ruined. I'm not completely against gambling but lets not forget how dark it can be.
Well gambling is not really that bad though.It will only be bad if one person lets himself be controlled by his greed.Gambling was already here since from our ancestors time and even until now gambling is still played by some.I think gambling is just here for a short time pleasure so it should not be treated as a thing that generates income.People tend to forget its real essence and so they end up losing all their savings and even properties.
If you are Controlled by something, I think it's going to be pretty bad because you already do not do what you want or with your free will. What's important is to be composed and not be greedy, but I know it's not easy. Even if it's 50/50 chance of winning or even 90. Once the wrong bet happens, you will regret it. That's just human nature.
I lost a lot of money once; it could be added to my savings, but I just chose to gamble it. I treated it as a money making a machine where it acts for a long run, as you said, generate income and it didn't end well, or even started good, I went YOLO then boom. Lost it. Sad but lesson learned.