We need all the help we can get

There are more engineering jobs than there are candidates right now--especially in the software realm. One potential source of shortage comes from the fact that there are significantly less women taking an interest in technology and how it works. Why would this be? Suppose you are a young adult female determined to pursue a career--the reason doesn't matter. Your choice of career field will inevitably be influenced by certain key values. You internalize these values through family, school, and cultural influences with varying intensity. Western culture is filled with dependencies on technology built by engineers, so there's plenty of value for engineers there--regardless of sex. Schools have been converting to increased technology use in their curricula over the previous few years, so females have certainly been exposed sufficiently to spark their interest. Although family values widely vary anywhere you go, engineering still caters to practically every family situation. Development involves building things for other people, requiring social skills and a desire to serve the community. There are even situations where you can work out of home. This certainly appeals to the caring parent who wants to stay home with the kids. What's deterring women from choosing engineering career fields?