Mother Nature's choice.

The family unit, consisting of a woman, caring for her offspring and supported by her husband, is the most efficient, economical and resillient model. It has seen humanity survive and thrive, through the good times and bad. It provides for the future and for the present. It is biologically, ecomonically and emotionally independant. (This is why it is often despised by the powers that be.) It cannot be improved upon!