Its common for people to change professions today. Whether you have a 2 year college diploma or youve spent years in school completing a law degree or completed your articling for a CA, sometimes the profession isnt what you expected and isnt for you.
I know theres a few teachers who quit after a year or two in because they realize its not for them.
For teachers who make it past those first few years it becomes harder and harder to quit because of the salaries, benefits, and pension. If youre 30, 5 years into teaching fulltime, then thats a pretty tough gig to give up even if you cant fataing stand it. Ive got many friends who are in that boat and are miserable but wont do anything about it because it would be financial difficult to give it all up. Makes me think back to many of the miserable teachers who I had that I always wondered about why they were teachers if they seemed to hate it so much.

lol