No I don't think that the average gambler can use the money he makes from gambling to earn a living. The major problem in my opinion is that gambling income is not reliable. All the casino games we play have a house edge that prevents us from finding a profitable strategy long term. To make money consistently in gambling we would need to be lucky consistently, which is not going to happen. Every gambler is going to have a losing streak eventually, and if we depend on the money from gambling we are in big trouble. That is why I wouldn't recommend anybody to use gambling as their major form of earning money. Gambling should be looked at as a potential bonus we can make at the side, in case we get lucky and hit the jackpot.