If you start from the premise that maintaining the children's quality of life is the top priority (which I believe) then it follows pretty logically from there.

If you start from the premise that maintaining the children's quality of life is the top priority (which I believe) then it follows pretty logically from there. Keep the kids in the house, with the parent most able to care for them. Unfortunately, this is usually the mother; in a more perfect world, it would be the father just as often.