The 71-year-old music icon said being thrown into the spotlight can cause stars to go off the rails, reported Contactmusic.
"It's really important to me to think back to (what I was like). Because with fame, I think your biggest problem is that you grow out of your old skin, and you see people go crazy because there's nothing to anchor you anymore.
"So I love to think back. If you talk to someone about The Beatles, or Wings, or more particularly about when you were a kid, I love dredging those memories up," he said.
"There have definitely been some crappy moments but I think because I try to ride it out, and come out the other end laughing, the impression that's left is that it couldn't have been too bad. There were certainly things that would put some people under.
