Nothing is keeping women from going into tech right now. In fact, there are all sorts of incentives for them to go into tech and they're STILL not going. I think it's time to accept the fact that men and women are psychologically different in some ways. That's not a good or bad thing, it's just reality.
How bout not making tech careers that end at age 40?
Or that are less likely to outsourced?
I was a tech person and based on my experience cannot recommend it to anyone. The only stable jobs are working for the government or a power utility.