I think this is what boggles my mind most about antiquity: the vast majority of people rarely ventured much past where they were born (unless they did a likely once in a lifetime religious pilgrimage which took the better part of a year).
Seeing as most other people didn't venture further either, you really got to know the people around you very well. Common life limitations simply precluded much travel. The only foreigners you saw were either invading hordes, or traders who were constantly on the road.