[env123]

Stable home environment = GOOD married couple of biological parents living together until child becomes adult

Stable home environment = GOOD biological parent until child becomes adult (if other GOOD parent dies, not leaves)

Leaves = child trauma, parent BAD = child destructive behaviour

One GOOD parent dies = child trauma, but lesser extent

GOOD = morally, respect, supportive, nice, kind, good-feel stuff

/eli5

Lesson: Marry not for looks, but personality eg. Johnny Depp and Amber Heard