As a counterpoint, I find that when introducing people to coding, mentioning Grace Hopper's role in the development of compiled languages does a lot to break down the perception of it being a job for boys.
Basically they were doing a rote process like women commonly did with telephone switch boards, but operating on computer signals instead of voice signals.
If a modern day programmer gets carpal tunnel, and they buy a typist so they can just dictate code to the person - no one would consider the typist a programmer unless he or she also happened to have those skills - not simply becaues they type in code.
Now I can't say how common this was without statistics, but you can see it paints a picture of how discrimination in one area could potentially affect another in a systematic way.
It could well be (and I'm sure I'm not the first to suggest it) that reduced discrimination in areas that require both technical and soft skills have caused an exodus of women from mere coding, because it's both more lucrative and enjoyable for many of them.