I was just shy of my 29th birthday when my daughter was born. I remember being in the grocery store with her when she was about 7-8 months old. Old enough to sit in the seat of the cart, but still a baby.
This woman comes up to me and says: Your granddaughter is beautiful. I carried that indignity around for a long time and even went out of my way to not leave the house unless fully made up (which is so not like me. I usually do not wear much makeup especially grocery shopping. Who am I going to impress? The baggers? They don't care!)
My dad was 40 when I was born and mostly bald. Back then, dad's didn't go into the delivery room. When they brought me out to show me to him, they said: Here you go, Grandpa. He was not happy either!