This makes me laugh every time I hear it. A classic case of "the grass is greener on the other side."
Most of the people I know who work in the "real world," have much less demands on them than I do as a teacher. They are constantly surprised at how much time my "cushy job" eats into my time outside of school.
FWIW, most of us have spouses who have "real jobs, in the real world." In over 30 years of marriage, DH has never had to do anything after hours. NEVER. He has made considerably more money than I, with less education. His benefits have always been better than mine. He has been laid off at times, but then again, so have I. As for my friends that work in the "real world", their realities are the same as DH's.
Maybe, if you think teachers have it so easy, you should have become one, so you too could live in a fantasy world.