Programming was a woman's occupation up to 1970 or so. Woman did a lot of programming on the computers that got men to the moon.
It might be equally or more productive to ask why we can't get more men working in early childhood education.
To the question of women in programming, I have no idea why the interest isn't there, but I have known several women programmers who were an asset to the teams they joined, I have known a few that were not, and several men who were not, but percentage wise in my experience I didn't see one group as overwhelming better than the other. You always get some defective programmers.
(Personally I can't stand soccer on a large field, it's an exercise in unaccountability, be it youth soccer or pro soccer but I find small field soccer really exciting)
I think the early childhood education is critical, more so than the most of the 'bias' situations that people are concerned about because: (1) a lot of boys get the message that education is a girl thing and tune out, and (2) it feeds into the "fear of males" which is toxic to relationships and may lead to women feeling more welcome in more workplaces.
Generally it will have an impact on diversity and bias issues 20 years down the road. Rather than endless handwringing and ineffective actions 20 years from now it will add to the right candidates being available for more jobs and getting hired.