I believe the talented Mr Ripley used this strategy to good effect. There's a saying about never trust anyone who doesn't have at least one friend left from childhood.
I was a very very awkward youth (I didn't speak English well and I was one of few Indian students at my school) so I had a lot of trouble making friends. I don't have many friends from my childhood because I wasn't very good at it, I didn't really establish lasting friendships until High School and College.
it's just a saying though and is useless past its intended meaning. It does't seem to apply to you.