Decades ago it was “common knowledge” that a woman could not play an electric guitar as well as a man. I mean, we’re talking about girls. Just look pretty and shake a tambourine or something. And if you must play something, stick with a ladylike instrument such as the piano.
That’s all bullshit, of course (as I prove here), but there are still a bunch of misogynists and incels who haven’t evolved.