My mother's actually a nurse, and it's been a really great career choice for her, especially as she's aged. Over the last five years or so my parents have had to move several times due to volatility in my dad's career. And yet at every move my mom hasn't had any trouble finding stable and well-paid employment as a nurse.
Nursing is similar to teaching in that you're not likely to get rich off of it, and it's not even an easy job at all, but it is a very stable one which pays a solid middle-class wage for life in pretty much any area of the country, from huge cities to small rural towns in the midwest. And, while the hours are rough as a new nurse fresh out of school, they're not bad at all with experience -- certainly it's a far more family friendly career than many others in healthcare, like being a physician.
If my mom had been a programmer, she definitely wouldn't have weathered the moves they've made as well as she has. In fact, she'd have been the one forcing my dad to move with her, as decent programming jobs simply do not exist where they live.