Ms. Parmar traces the problem at least partly to technology’s image. When her team asked children to draw a person who worked in technology, all sketched men, often geeky and disheveled.
This is an article reiterating some of the outward, appearance related elements that stop girls from even getting started in technology. That and, as the writer says, the lack of sense of belong + subconscious stereotypes. I think Raspberry Pi might be a great way to get a girl you love started in technology!
Technically Pretty 