"Well, if they're honest, most male guitarists picked it up in their teens and the underlying motivation began with the same letter and had roughly the same shape. "

Actually, there's a converse argument to be made. When I saw Chuck Berry in concert some forty years ago, the way he handled his guitar on stage left NO doubt as to which gender, and which specific part of that gender, he meant the instrument to represent. Believe me, it was IMPOSSIBLE to mistake his meaning. (I've never since been able to hear those "hard" chords of his without thinking about that.)

Jon Corelis
The summer will come: an Irish song