Yes of course, a lot of people depend on gambling for living, although it depends on your mindset, if you say that this is what your going to make a living with, you have to be ready to face risk, money management, emotions and some other factors that is attached with the profession. Once you get all that intact that means you're ready to go in as your new job, no boss, no manager only you and your self, and then you will see how far gambling can take you. Take a look at how Drake won a fortune through gambling, that enough is a big motivation.
There are people that actually depend on gambling for a living but I wonder how they do it because when you don't win then what do you survive on because I can just imagine not doing anything and fully depending on gambling in won't be comfortable because o would be scared of not having anything else to do, when I don't get a win but if you look at the reality of it when you have a job or even something else to do then it makes gambling even more easy for you.
Than just doing nothing and then gambling because even the professional gamblers that I know, they have businesses and other things that they do and this is why you see businessmen having meetings and the same time gambling they have made it a tradition to always gamble when they are relaxing with there fellow businessmen, this shows that they have something to do and not just focusing on gambling alone.