Audiophile demographics?


Why are there a disproportional number of male audiophiles?
Not sure if this is a silly question, but speaking for myself, I have never met a female audiophile.
I am sure they exist, but their scarcity begs the question as to why.
Is it merely that men have more of the "mine is bigger than yours" mentality, do men love gadgets and tools or is it something more sinister?
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Women like the concert- social part of music and occasionally comment how they like some music I’m playing at home or in the car, but they much prefer talking which usually means I have to turn down the sound of my music to hear what they say.
What are the ratios among:
-rock instrumentalists
-pop singers
-singer/songwriters
-professional classical musicians?
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