I would agree with this, but I would add something. If you ever get to a point in your work where you have ownership over your tasks and production and aren’t just a tiny cog in a big machine, it can be really fulfilling (at least as much as any paid job can be). I speak with experience only coming from the non-profit side though, so I’m sure a lot of people may not feel that way about corporate jobs. So if you have experienced that kind of fulfillment, and something changes (either your role or your workplace or your manager or whatever) and it’s not fulfilling in the same way anymore, it can be really frustrating, even if you could feasibly fill your time with personal stuff.

Also, sometimes being forced to be somewhere chafes when you’d rather be out in the world or at home. Napping, hiking, checking out a book at the library — hard to do when you’re stuck in a specific place.