Inasmuch as the earnings are not fixed and certain,I don't advice anyone to take up gambling as a source of income.Gambling is a social issue/problem that hinders growth and breeds unproductivity.
It encourages the belief that working is not important and hard work doesn't pay no matter the time and influence puts in.Gambling gives money,but its not something that you can completely rely on for survival.
Gambling is a game,an activity that should be done for fun but people's inability to control their minds towards the toxicity is what initiates the addiction;and its clearly not a favorable place for all individuals or intending gamblers.