Only a few people can take this advantage and turn bitcoin into a real job. Others do not care about bitcoin and most of bitcoiners are people who have a decent job in the real life and they use their own money to invest in bitcoin
You cannot be sure to say that. Because there are different types of people around the world like employed and unemployed. People are making use of bitcoin based upon their needs and situations.
But we can be sure anybody will prefer to have bitcoin as they are part time earning opportunity. This way we cannot say most of the bitcoiners not bothering about bitcoin earning to save/invest in bitcoin by just earning it rather than investing from their regular job.
Compared to other freelance jobs, we are getting very less number of bitcoin based online earning opportunities. Still we are getting high paid jobs with bitcoin payments. People will obviously prefer higher payments and I just come across many employers are preferring to pay even in bitcoins as it is beneficial for them for tax savings.