Having a father and a mother doesn't mean you have a healthy upbringing. Almost nobody has a healthy upbringing in today's society, because most people don't make good parents. The nuclear family is just a model that came about (I think in response to the industrial revolution?), it's not how people were meant to be raised. Children were meant to be raised by the whole society, particularly the elders. THAT's how you have a healthy upbringing.