When I was a kid, my father wanted me to become a teacher. He felt that teachers would always have good jobs.
This was odd from the get-go, since not only was he a lawyer, but his oldest sister was, too (and was the first woman to graduate from whatever law school in Chicago she went to, just before the Great Depression hit). And I have never had any interest in teaching (Yes, that I ended up home schooling is irony that I totally appreciate). But, yeah, his two other sisters became teachers.
But look at what's happening to teachers today, both in general and in Chicago, and what happened to them during the Great Depression. Now in Chicago they are being fired and schools are closing, due to 'monetary issues'. In the Great Depression they didn't close schools ... but the teachers didn't get paid!
There are all the other issues with teaching, too - having to supply much of one's own supplies, burnout, being asked to do more stuff and less teaching, the high burn out rate - but certainly my father, who was 26 at the time of the stock market crash, should have known how teachers got screwed during the Depression.
I remain confused.