But why even bring it up, if it's not about enforcing gender roles and suggesting those parents who don't are somehow shortchanging their children? She probably wasn't taught how to play the harmonica either, but if she had wanted to learn later in life she would be expected to take the initiative and learn it, and nothing would be said about the people who raised her not teaching her how to play. As I said, people do not learn everything they know from their parents.