It puzzled me on where does people would get funds to buy Bitcoin if they don't have source of income?
So I guess you are right they need to seek for a job so that they can sustain their investment. Having a discretionary income is important since they could do those things that they want especially if they want to deal with Bitcoin for long term.
We should not engage on survival of the fittest on investing and better we should aim for sustainability for our Bitcoin investment.
People have different lives and needs so if they want to become investors, they must manage good finance and use part of their money for investment. If they have empty hands and pockets, no capital for investment, they have nothing to blame on rather than sit down, think deeply and build up their plans for working harder for money.
With people who are already investors, they must think of better and more efficient capital management, including emergent fund allocation that if is done well, will be very helpful for their Bitcoin holding. Without urgent need of selling bitcoin by empty pockets, no money for emergency, people will manage their Bitcoin portfolio better and hold it stronger.
Cryptocurrency job list.