I ever heard that people choose to quit their job for doing some crypto job. Whether it is trading, mining, or bounty. But I think that's the worst idea. Maybe they think that kind job like that can earn many profit but they doesn't looking at the risk and keep do it. Look at the market, they stay red and it will hard to get profit from investing or trading. GPU price is more expensive as well as a lot of capital to be spent when starting mining. Also Bounty Hunter has bad condition right now with too many SCAM ICO which caused some of them just wasted their time and doesn't earn anything.
How they can earn money for daily need if only depends on the crypto?
I agree. I just use crypto as a side job to earn extra income.
Mining may be profitable but you need a large capital to build one and operating expense to sustain it.
Trading for a living is possible only if you are a good trader who can make money whether the market goes up or down.
Bounties, nah, too small just extra income.