Yeah this does exist/happen to some extent. My partners father retired young (40's) and spent a bunch of years kicking around doing odd little jobs. The issue for many employers is that people in these situations don't really NEED the jobs so they are less likely to stick around late or put up with any bullshit which many jobs contain plenty of.

This is just antidotal evidence of seeing my partners dad say yeah fuck that job after 6 months.