How old were you when you became an auntie/uncle?

Never. I only had one sibling and he was child-free until he passed away.

My brother was 24 when he became an uncle. He came to see my son when he was a few days old, and my son was sleeping like newborns do. My brother asked how old babies are before they open their eyes... as if it was a puppy Probably best that he didn't have kids. Loved the **** out of my kids and was great with them, but also an idiot.