Earlier quoted context omitted.
I think there's truth here, but I also think programmers routinely underestimate the quality and compensation of other careers that they think are "below" them. For instance, you did it in this very post. Do you really think that all high school teachers are locked into making $40k for life? Here where I live (a large city, but also a pretty affordable one), teachers start at ~$55k in base salary, get a whole range o…
Annecdata: as a teacher in an inner city high school, I did not break past 50k/year for the three years I was there. That includes the summers I worked. Between grading, lesson planning, meetings, and teaching, my typical week day started before 7am, ended around 8pm or later. Typically most of my Saturday was used up and half my Sunday. Normally all of spring and winter break was used up likewise. I typically got cl…
That said, I'm not sure I've ever met a teacher who takes off at 3:20 every day. I imagine it probably averages out to around an hour before and after school, so 7 AM to 4 PM? But there's often grading that happens at home throughout the week. I wouldn't be surprised to see veteran teachers averaging 44-50 hours a week of actual work for the year (with lulls and spikes for midterms/finalls, etc).