The whole thing seemed weirdly condescending towards people with normal working and spending habits, especially because it's not obvious to me what was so great about what the author was doing. The dude hung out for a few years, failed to become a writer, and did some travel, bored his partner to tears, and ... "sucked down an awful lot of media — movies, video games, books", then learned the shit that normal people…
Maybe I read too much into that part, I've certainly seen it with some of my friends. Some of my friends hate their job, other friends of mine are okay with their job. In any case, it isn't hard to imagine a big group of his friends being unhappy with their job.
After having read this, I kind of come to the realization that some serious research needs to be done to the psychological state of people in general and working. The results are all over the place [1]. For example, Pew Research Center seems to claim that Americans as a whole are pretty satisfied with their jobs [2], whereas an article about a Gallup poll claims that 85% isn't [3].
[1] https://www.google.com/search?q=statistics+us+people+unhappy...
[2] https://www.pewresearch.org/social-trends/2016/10/06/3-how-a...
[3] https://www.staffsquared.com/blog/why-85-of-people-hate-thei....