Here's a short but complicated question: if grown men object to being called "boy", why don't grown women object to being called "girl"?
I was raised in New York City in the 1970's by a radical lesbian feminist, and to my ears, "girl" is completely wrong. I'm always a little thown by hearing adults referred to as girl. It seems demeaning, but plenty of women refer to themselves that way. Am I completely out of touch? Are they?