Adult friendships refers to the goal of making it easier for adults to form friendships even after the main opportunities to form friendships in life (e.g. high school, college) have ended.

See also

• David Brooks’ article on The New York Times.
• “Does it become very difficult to make friends and form lasting relationships after college in the US?” on Quora
• “Dorms for Grownups: A Solution for Lonely Millennials?”
• Meetup.com on Wikipedia
• http://www.nytimes.com/2012/07/15/fashion/the-challenge-of-making-friends-as-an-adult.html