If people will leave their current jobs just to focus and work with cryptocurrencies, I think they need to work hard to be a successful person or they can also work as developers or as a trader. This is the best thing to do if they want to make the bitcoin as their source of income.
True you won't become reach by just doing signatures. You need something more or you're going to invest your earning here in businesses. Always have a backup plan.
I would think thrice to leave my job for bitcoins. Everything I earn online is in bitcoins, but in real life,we have rely to fiat as there is currently no other option. Many less people are aware about that such a thing even exists.
If there is some long term opportunity to earn bitcoins online by getting hired by a big bitcoin company, then one can give it a thought.
If you have a degree and diploma and have a decent job, why leave it? BTC is good but just work here as a sideline. It will be a loss situation if you just left you're job unless you've become a developer or a very good programmer here that the salary equals your work in the real world.