There are successful families with single parents, with homosexual parents, with parents and extended relatives, whatever. And there are families that are epic failures with a mother, father, and children. There are even entire cultures that function with polygamous marriages.
If your family is happy and functional, then that's it. That's all you need. That's the family structure.
And natural disposition? **** the natural disposition, human beings have never just laid down for nature. If you wanna go by the natural disposition, abandon all your technology, your comforts, and go into the wild and live like an animal. It'll be a good day when your outdated mentality finally dies out.
And alter the natural disposition? Human beings alter