Agree with your analysis about occupational potential; gender does not necessarily restrict people from certain jobs.

Without getting into an anatomical discussion, I will just say that I believe that "brains/personalities/genders" are on a continuum of sorts. The most masculine appearing males, for example NFL football players, may very well have a "feminine" side of their nature. Some, more than others. The most feminine of ballerinas may very well have masculine interests. I do not know why this exists except that the Creator allows it, but I do believe it exists. I do not believe there are all black and white brain situations.