As to why there are not a lot of women in ID, I won’t even hazard a guess. But I suspect it is a similar reason as to why there are not a lot of women in engineering. And a quick google search on that shows several papers willing to give an explanation.
As to why I am not hiring women, that one is simple. I just filled 3 positions of varying experience. Of the well over 100 resumes/portfolios I received, I’d say 10-15 were women. Of the 20ish people I interviewed, 2 were women. The odds are literally 1 in 10 a woman would be the best candidate.
Although our current department mix is better than that. It is currently approximately 30% women. Other departments are different. Accounting only has 1 man with about a dozen women. Marketing is about 50/50. Our factory floor is 60-70% women. Inside sales again about 50/50 but outside sales is mostly men.
Interesting question though. I hope my ramblings were useful.