(M)y SO is a female QA engineer. I dont know why but there is a lot of girl there. On the SWE side we really need to alter the industry to improve diversity.
That's what i thought as well, from anecdata it seems to me the overwhelming majority of females and gay males in software development or IT live with males or females from the same industry.
I wonder if one day the industry is more evenly distributed if we'd see a similar percentage as for lawyers.