There are pro gamblers out there who make a living out of gambling in more ways than one. So many pros have been earning more on their fame than in their winnings on gambling, because being a pro only takes experience and ample game knowledge to put you at a little advantage over other players. But once lady luck stops being on your side, you're sure as hell screwed.
Haven't meet one, but i have lot of friends who loves to gamble but turned out to have a miserable life in the end. What my perspective if you're living through gambling, i think everyday is living at the edge for you. That path maybe full of hardships and loss, i can't imagine how one can feed their family through that lifestyle.
Cause no one is supposed to ever make a living out of gambling. Gambling is something you do to relieve yourself of the stress from the outside world, and not something to replace a regular job.