~snip~
But, in a broader sense, can you make gambling a career path, abandoning all other sources of income to focus entirely on it?
If so, why?
If not, please advise!
I don't see any reason or whatsoever that will make someone to choose gambling as a career like is such person insane or wants to have mental disorders? Like no matter how much you win in gambling, it isn't enough to discard other ways of earning an income and become dependent on gambling, a game of uncertainty? Like you win now the next minute you lose and you want to choose it as a career? Hell no, gambling should be played with carefulness and no matter how successful you've become in gambling, it isn't a prerequisite to guarantee you a successful career in it.
Following your sentiment, there's no assurance that you can win in every play that you participate, chances of losing is always on your back and even how many times you manage to win there's always a bad day for you, though if you can control yourself and you can manage your emotion which is for sure that only a small percentage of gamblers can, there's always a possibility that you will lose your control and also suffer from big defeats.
As a career maybe it's only few person can deal with it, most might have other things or other alternative aside from gambling that can give them enough financial needs in case they lose in gambling.