You Bet It Ought to Be Illegal

You bet sex-segregated public schools and classrooms should be banned. There shouldn't be any argument here.

It was popular fifteen or twenty years to argue that girls were somehow "disadvantaged" in co-educational classrooms because they weren't called upon as much or felt "intimidated" by boys. There was supposed to be all of this "evidence" that many women of "achievement" went to sex-segregated private schools as there was supposedly less pressure put on girls and they were "encouraged" to "achieve." Of course this was bunk right from the get-go, as sex-segregation had nothing to do with the achievement. Girls who attended these schools tended to be from well-to-do families, which gave them an automatic leg-up for "better" colleges (i.e., Ivy League, Seven Sisters) and in turn gave them a huge advantage in the labor force.

In short, the elite maintains their privileges through their own schools and connections.