Huh? My sister and I both live more than a thousand miles away from our stable, married parents that we are on good terms with. We went where our work took us and then met and married people in that area. My sister lives several hundred miles away from her in-laws, and my in-laws (also still married) only moved to be near us when they were no longer capable of living independently (there is no way with all of their health issues that they could take care of our kids).
This goes back a generation as well, though the distances were smaller (~400 miles of driving between me and my grandparents when I was growing up).