Giver how few female engineers there are, female mentors will be rare. So if a woman wants to really learn engineering in the trenches, she had better be willing to learn it from a male mentor. As far as teaching the technology side of engineering per se, the sex of the mentor is a minor consideration. The political side is of course another problem.
See? There's not enough critical mass of women in this occupation to make the female-mentor-bootstrap thing work very well. Tell the girls to seek out old farts who have daughters, like me.
Yeah. I hadn't really thought about the androgyne thing before.
John