Gambling winning can never substitute for steady income this is because there is no consistency in gambling earning and at that, one can not rely on it to make a living, worst case is when the individual is unemployed because that will truly hurt his finances and upkeep allowance where it is available.
Gambling should be waken for fun and wakened mormoreout it because if you rely so much on gambling, it may lead to some other severe problems that you may not be able to control as an unemployed person.
In Gambling, if you're lucky you may win some games consistently but there is no way this can continue forever. You will lose games and bets too and there is no guarantee that you can win a certain amount of money on a daily basis. Some days you might win a lot of money and on other days you may lose a lot of money, so a steady income through gambling is not possible.
I would say that gambling is not even an earning heaven because if you analyze we face losses more than the winnings. You can say that gambling gives you a lot of fun but steady money I really doubt it.
Winning in game consistently is to hard to maintain since gambling result is really random. And when gambler consistently winning on sportsbetting, there is a high chance these people will be limited by the book maker. In short we will be doom if we think gambling can be a stable source of income.
Instead of thinking gambling as source of income, why not think of it as steady source of entertainment and lets us use our free time to look for side job for extra source of earnings.