The SummaryIn a survey, nearly a quarter of U.S. adults without college degrees said they had no close friends.People without college degrees also reported less participation in social activities like going to parks or restaurants than college-educated adults.The findings come amid a documented rise in loneliness and social isolation.Nearly all U.S. adults used to have close friends.In 1990, the share of the population that said they didn’t was low and roughly the same no matter one’s education level: just 2% for people with college degrees and 3% for...