To your why men working in early childhood education isn't popular, it is probably because people have a natural fear of males and the young, because of the years of data of the animal kingdom where males often kill the young and are naturally separated.

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.