An anonymous coward wrote: A child needs a man and a woman to grow up in a healthy way. Two women or two men can't provide the necessary role models.

So you're saying that children raised by single parents (ie. no mother or no father) are unhealthy? There's obviously a role model missing here (by your standards).

And what about families with abusive parents? Do you really want the children to use them as role models?

If a child is in a loving family with 2 parents dedicated to each other, I fail to see how that is any less healthy than all the "traditional" alternatives.