[01284a7e]

Putnam's "Bowling Alone" (2000) is about this, and it is something that has been in decline since the 1950s: https://en.wikipedia.org/wiki/Bowling_Alone.

[bookofjoe]

"The Pursuit of Loneliness" (1970) — Philip Slater

https://www.amazon.com/dp/0807042013?lv=shuf&channelId=500&p...

https://en.wikipedia.org/wiki/Philip_Slater