[hacktothefuture]

This was my initial thought as well but I remembered listening to this podcast and I think it touches on this idea and expands on it. http://www.npr.org/sections/money/2016/07/22/487069271/episo...

One of the examples in the podcast expands on the viewpoint that computers are for men and that idea is ingrained even to the level of the family, so computers are kept in the sons bedroom so incidentally the daughter had less access to it.

Its not suggested by guidance counselors to females when looking to select electives in junior high school.

So if they are seen as a male hobby or interest, at a time when what your peers think is so important, girls are less likely to want to venture into that area and be outside the norm.