I don't know about joining first, but when women are conditioned to become obedient followers and never being the main decision maker in the family, it make sense that they may not feel right being the first ones making the move out of that organization.
It has to take a toll when they spend years and years being told that they are secondary, that all they can do is make suggestions, that they have to be submissive, and that they are weaker than men.