sorry, what working-class person do you know that goes around following phish or antoher hippie band?
it's not absolutely true, no, but it's generally true. to fuck off and not work for years, generally requires inherited wealth. normal people need income, because they don't have inherited wealth.
a lot of trust fund rich kids are pretend poor. tons of them in my city work work service jobs while they wait for their trusts to mature because it's 'authentic' and not 'working for the man, man'. meanwhile they turn 30/35 and you see them a few years later and suddenly they are telling you about their properties they rent...