Poll a thousand males and a thousand females and ask them.. Given a conflict between family/Home responsibility’s and career which one do you gravitate to? You’ll find that females have a much higher propensity to focus on the home and family while males gravitate towards work.

So two lawyers are married and have a child, the majority of the time the female will be the one who’s career gets put on hold.

If you need a study to believe that you are pretty clueless in regards to human nature.

I'll just note the lack of supporting research for the conclusions drawn here.