@raining_night
When we're younger everything is shiny and new, and we have to try stuff out. Other kids our age are also trying stuff out, so we strike up relationships with them.
As we get older, (as in older than 30's) we become much less interested in trying out new things, so meet fewer people.
e.g. Wife knows someone at work whose husband plays at an open mic almost every wed. night. "You and your husband should come. He can bring his guitar and participate too." We did, and I did. I had a good time, went back several times. Cataracts make driving at night difficult, so as winter came on, and it got darker earlier and earlier, and the temperatures got colder and colder, I found it harder to work up the ambition to go out.
The applause is nice, but sharing the embodiment of the song is primary. Making new friends isn't even a part of the reason I'm there. Sure, I make conversation here and there, but not with any intent to form new relationships. If that's also true for most others there, it's little wonder new friendships don't get formed.
"It's difficult to make friends..."
Maybe because we're not even really trying? Maybe friendships are "worth it" when we're younger, but as we get older, they seem more trouble than they're worth?