Nothing wrong with living in an RV, if you can make it work.
They might even settle down there. Iowa is family friendly, has high SAT/ACT scores and the economy is doing better than most. Very few Iowans are farmers, it is more financial services and insurance now.
I thought about doing that to save money when I was out of work a few years ago. I knew I would be moving to another city to get a job, and thought it would be easier if I lived in the target city (Austin Texas).