Women - What's Your Excuse?

The electric guitar has been around arguably since the 50's.
Where are the women?

It's been long enough to attain a much more even distribution of the sexes, yet the field is still overwhelmingly male. It's even societally acceptable (whether or not that matters), although one can argue that playing is partially about rebellion.

And I'm not talking about Courtney Hole. Where are our Bonnie Raitts?
The percentages are staggering.

While we're on the topic, the ratios are almost as bad in MIS/IT.
I don't believe there *needs* to be any ratio in real life: I'm just curious.