I've live many hours away from my parents, and I no consider it insane to do so. When I lived with my parents I could make a few phone calls and have a dozen people on my roof - now if there is a problem I have to pay a crew even though I know how to do the work (since there are things that cannot be done alone) When my wife and I want a date - too bad: there is no babysitter nearby that will work on Friday night that we trust, so we don't have that option. There are many other similar things about being close to family that I miss.
I enjoy exploring the world. However eventually I want to come back home.