But women and men generally don't do the same jobs, and the jobs women do tend to demand fewer hours and less work than the jobs men do, and they therefore make less. Most families choose this type of arrangement so that women can be more available to their families.
The high-paying jobs are VERY demanding, and are mostly done by men, or childless women. These types of jobs are generally not compatible with raising a family. Men have traditionally done these types of jobs.
Perhaps if men and women would equitably share childrearing and housework, women could work demanding jobs
and raise a family well.