Toronto-based magician Rosemary Reid asks (and answers) why we don't see more women performing magic. Something to think about:
I've considered the paucity of women performing magic can be explained very straightforwardly by a lack of visible role models. Small effects can have large causes, especially if their impact multiplies through a population. In the days before video, if a female magician didn't live in your area, your chances of seeing a role model were very low. Now that the world of online video has exploded, we could very well see that trend reverse itself extremely quickly.