If you take it as an entertainment, then have some advantages. But if you take it as a earning source then lots of disadvantages you have to face. Patience is the key to success in gambling. Gambling teaches you how to keep patience. When and how do you take right decision gambling teache you. Worst disadvantage is you lost your emotions and wealth. Day by day you fall in deep depression.
AFAIK, patience is more applicable in investing and trading. IMO even if you're patient in gambling, what's next? are you going to be successful after that? No.
There's so much a lot of things needed for you to have that description of being successful there. It takes a lot of courage for one to be called successful in gambling and the reality is that, not that many sees that success.
The only thing that I could see is that gambling will please someone who has been tired/bored from their job. But if we are talking about earning money from here, well, isn't that possible but it needs luck and knowledge. And so much we can't rely upon in here when income to generating income for the family.
It has to say that addiction is a big problem in gambling but that can be stopped as long as we want to. If we can manage to control ourselves and know our limitations, that is not a problem. We are just making fun in gambling and that was the thing we were supposed to do.
Making money in gambling is possible but this kind of job is not for everyone as only a few are chosen to possess the skills to be successful. Most of us will eventually lose so we just have to enjoy gambling, at least knowing the risk is very important as it will ensure us to be safe even if we lose.