I always thought biological clues were ways of telling how it should be.
Women should marry in their 20’s. Their youth and beauty gives them the best opportunity to marry the best man they can have.
If they have kids, they take care of them until the child starts to become independent of them. At that point, the father then spends as much time as he can with them to help them gain confidence in the world and they can help him because they’ve become more lively than bread boxes. At this point, the mother can go workoutside the home if she wishes. Although that doesn’t mean that she can’t get training to work outside the home along the way.
The father must be the spiritual leader in the home from the day they are born. When he is home he worships God, not men. Loves his wife as he loves himself. That is the rest of the what works story. And the most important part.