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by Broken_Hippo 1432 days ago
A lot of them were either single or with girlfriends, i.e without family, so relocation would not have been an issue.

Just because someone is single doesn't mean they don't have family and friends in the area. The further the move, the less contact they have with their existing social network. Not everyone is up for that, especially if you are moving a decent distance (like between states).