I enjoy my cozy home, but weather permitting, I'm often outside. Pretty sure what you're seeing with us older folk is that our regulating body furnace doesn't work as efficiently at our age so if the weather isn't perfect, we tend to stay inside where it's climate controlled.
Then there is the fact that many RV parks are dusty, graveled, treeless places that we've setup camp at for many possible reasons other than meeting the neighbors...close to family, close to tourist experiences, close to a RV shop with a good reputation, close to a golf course, close to good shopping after a couple weeks on the road ending up with a depleted pantry.