To expand on the teacher comment, assuming that is what bristles commenters most, just as girls receive less help for math & science I'm pretty sure it has also been shown that boys tend to get less help in the language arts. The point is that our society has bias and children are affected by this from a very young age.
As for the follow up comment, that one was a risky one to put out there

. While writing this I was specifically thinking about a female IT manager that did a real bang up job of creating vapor ware at one of my past jobs by making such a fundamental, stupid mistake. She used her influence to have resident guru canned as not being a 'team player' for saying her plan would fail. She left before the other shoe dropped.
Like it or not and as a general rule, IT has a reputation problem, much of which has to do with perception. I'm not saying women are the magic pill, rather that hiring *anyone* with a different background who has the appropriate qualifications and taking advantage of those differences will help IT.