In 2006, according to the Census Bureau, about 27 million American men held a college degree; so did about 27 million American women. This is a tipping point, however, not an equilibrium, because male college graduates tend to be old, ….. There is no reason why this might not happen in other fields, with, perhaps, certification exams requirements coming to replace degree requirements.

More:
The Coming American Matriarchy – Reason Magazine