This also probably explains the disproportionate prevelance of pedophilia in males. Pedophilia is just a hop and a skip away from normal male sexuality (to be attracted to barely pubescent children), and probably represents a sort of "extreme male brain" defect similar to autism. Meaning, normal male brain development went wrong, and woops, now you want to screw on 10 year olds (instead of 14 year olds, like a normal man). The reason we have such common occurances of pedophilia and not gerontophilia, is because pedophilia is a defunctional expression of an otherwise adaptive sexual drive. Gerotophilia on the other hand, is completely unrelated to any sort of normal sexual behavior. Similar to homosexuality (an abnormal expression of normal sexual behavior - preferring the same sex instead of opposite) pedophilia is an abnormal manifestation of otherwise normal male sexual drive and instinct, to go seek out virgins.

The incredible genetic benefit to male genetic spread via mating with virgins also explains why throughout human history in every single culture, female virginity is protected prized and bought and sold like commodity.

This of course is all very much common sense to anyone with a brain, but brains are apparently verboten if you want to be a successful social sciencey bullshitter such as Allen Frances, MD, prominent duke psychiartist.