So we've settled that women can play as well, but there just isn't enough of them to measure up, thus the deeper question of why aren't they drawn to it to the same degree? So I don't think that it has much to do with exposure or anything. I'm the youngest of 3 siblings. My Dad plays acoustically, our oldest brother is excellent, and obviously I (the youngest) play to some degree, but my sister "learned" 3 chord shapes and gave up. It's in her "blood" and she's been exposed from an early age, but never showed much interest. Ok, that example doesn't sweep the species, but yeah...I think it just stems from a biological gender difference. For example, the recent (fairly obvious, but now it's official) study that women talk more than men...like 3 times as much on any given day. Women just love to talk. It's a stretch perhaps, but maybe it contributes to why they don't have as much motivation to invest in dedicated subtle forms of expression, namely guitar, when they'll just tell you how they feel.

Oooh...and carrying that line of thought, it might reflect how there's certainly no lack of women singers.