+1 to the petite issue. Though, now that I am of a certain age, it seems to matter less.
My issue with the "kid talk" is not so much from when I was teaching, as Veronica described, although I experienced that a little. It's more what Tulip described, but expanded to every little thing, i.e. getting a license, college application, etc.
One time many years ago, I was at the monthly children's service at my synagogue. My 2 kids were about 8 and 10. Before the service started I had to listen to this horrible rant from the woman next to us about how her little genius was not being challenged in writer's workshop. Blah, blah, blah. I was getting enraged by the second, so I said, kind of loudly, "I don't want to hear this **** when I am in temple," so I made my kids get up and move. My older son was really embarrassed and was like, Mom, calm down.
I had to stop going to the cheapo manicure shop near me because I kept seeing too many people I know who were saying things like, "Oh, did you know that ---- (their kid) was married? graduated law school?, etc. etc." It never stops. These "kids" are closer to 30 than 20!