Yes, actually. I think that most people who slack off do not want a life sentence to mediocrity. They take a couple years out of their careers, underestimating how difficult it will be to get back in the game.

There are a lot of people in Williamsburg (and, presumably, every other hipster enclave) who fit that bill. They're "trust fund kids", but most TF kids are only moderately wealthy ($1-3m) and will need to step it up in middle age if they want to keep up their lifestyles. They have no idea how hard it will be after 5-8 years of drug use, partying, and generally wasting whatever intellectual sharpness they had in college. They also have no concept of what it means (and how bad a position it is) to be competing with fresh 22-year-olds for entry level jobs after wasting nearly a decade.