If you are making enough through mining, like massive mining rigs with good power rates then you can live of that. Or if you are good at trading and have good capital then you can also go about it that way.
I think do not make bitcoin as the main income and depend on bitcoin if you do not have a fixed income or workforce. Look for a job that's fixed and you have a guaranteed income. I do not think you can make trading the main jobI think so too. Bitcoin is just for fun and if I'm lucky, you can still make a profit. And besides him there are several other coins.
i feel if you try hard on bitcoin you get it if you just play for fun the result is not maximum How much you try that much will you harvest, that is an old saying. Bitcoin can be source of income and bitcoin is exactly that for many of us, many of us but for sure not all of us, cause we can see that people are using bitcoin for various things. Its not source of income just with mining rigs or with trading, now we have many more jobs for bitcoin, people are earning if they have knowledge about programming and web design, with a lot of effort bitcoin can be earning with many small jobs, faucets and signature campaigns, it is small but someones small is a lot for someone else.