When my son was about five he would always say “that’s a girl” when he saw Michael Jackson .... he could be arrested today.
When my son was about five, he rather loudly said “Dad, that lady is REALLY FAT.” (She was, too - maybe 300 pounds).
I quietly explained to him that it isn’t polite to say those things out loud about people’s appearance.
About an hour later, we encountered the same obese woman and my son said to me “Look Dad, there’s the lady who is not so skinny.”
My wife and I just broke up laughing.