Why is there a “woman’s” tech conference? I never met a woman that code her way out of a wet paper bag. I spent most of my career as an consultant doing software engineering. My business was based on the ability to do things regular employees could not do, so I saw any business dominated by women and affirmative action hires as a gold mine. Over the years I saw some of the most silly efforts to increase performance of employees, some of which included specialized training for women and minorities only. While that didn’t affect me, I saw the results among white male employees. They were often starved of professional development opportunities. Despite that, they were far more capable than affirmative action and female hires. Oftentimes there was a deliberate effort to get rid of the best employees. That happens when you have incompetents in management that are threatened by people who actually knew what they were doing.
But I agree with your sentiment. All the decades of promoting IT to girls has had little impact on increasing the number of young women who want it bad enough to do the research on their own and, if going through formal training, get the hard core training like computer science degrees from colleges that require things like building your own pre-compiler from scratch.
To be fair, the few women I've seen do well as code jockeys turned out to be the best at communicating with functional users. For whatever reason they were better than most men at the social skills programmers need when we have to look up from our screens. But again, for whatever reason they're very few.