If you can manage your money, playing gambling will be safer. No matter what is the gambling games type and no matter how much the money that you used for a gamble, you will not lose too much money because you can control yourself and your money. We can play gambling at any time we want, and we will not have a problem in the gambling games because we always remember that gambling is just part of enjoying life, and we can still prevent the worst thing that might happen.
Yes, gambling is mostly been made for entertainment purpose but we have turned it into a source of income. There actually are a number of people who do gain some passive source of income from gambling by placing limited bets on fixed games.
There also are a number of sources open for people to gain profits from gambling. You can even have profits in gambling by playing bets on both the teams if the profit rate for both the teams is above 2.0% to 3.0% as it would never make you loss your capital even if you place bets on both the teams(though only one team would win.) This method might give you small but assured profits with no risk to loose your capital.
When you turn gambling into a source of income, you will feel it is difficult to go because not all gamblers can get money from gambling. But yeah, I believe that some gamblers can have passive income from gambling.
I don't know if there are a number of sources open for people to gain profits because I know that if people playing gambling, they have two options that they will get. They will lose or win, and I am not sure that they cannot lose their capital. But if you talk about investing in gambling with the house, then that will be the source to get money although the profits are not too big.