I’m 48 and I doubt I have any either.
Lots of people I’m on good terms with though. Friend would be a stretch.
I’m 70 and the same way. Get a friend and you have a job, you become a bank, you have someone to nitpick your ass all the time. I have drinking buddies and not a one would DARE come to my house, give me unwanted advice or invite me to their house. I’m satisfied.