this is a very risky move honestly.. i would not quit my job to go deep dive into BTC and rely on it.
Nowadays it's hard to find a proper job and if you have it you should stick to it to have an income, one thing you can do is to find some spare time every day and study or work for BTC.. you need an income anyway, think twice before doing this jump into the dark.
I agree. Although that can be done, I think it can only be possible if you have ample savings to be able to handle all your expenses for yourself and your family, if you have one. As I have been in the market for quite some time, I have come to learn that ventures even the easiest, like ICOs, can takes months at a time to be realized, so it would be too difficult to quit your job and not have a steady income to support your needs. After all, needs and expenses are a constant, and so, not having money to answer for them would be problematic. So, yes, it may be done, but only if you have enough to help you go by.