If a liberal arts degree is of no value to men, all things being equal, it should also be of no value to women either.
Assuming that to be the case, it appears that men are making a rational economic decision by forgoing university, and women are not.
Then again, there are entire industries predicated on women not being rational economic actors.
< ducking a barrage of handbags and vases from lady Freepers >
All things are not equal, however. Perhaps a college degree has more value to a woman due to affirmative action; or due to social pressures where it is seen as a sort of finishing school.