The only ones who make a living in gambling are the ones who own the casino or get paid by the casino for advertising/other services. The gamblers definitely cannot make a living from gambling. This can be proven mathematically.
Casino bookmakers certainly get a lot of benefits and become a job that can be a source of income to provide for their families, as well as employees in online casinos and People who join for advertising services and the like,
Like us who are on this forum with signature campaigns., and yes being a gambler cannot be said to be a job to provide for the family because it is more risky to lose and there is also no certainty,
Gambling is just a pastime to spend free time with some games and bets etc.