>>>Whether they are rules is at question: that's the point. The set of moral/cultural precepts implied are tradition: that they are anything else must be demonstrated, not taken for granted.
>>
>>How does procreation work? Is that to be changed to a lab function now?
>
>In some cases like in normal couples: a lesbian couple I know "borrowed" a close friend.

I know that happens. They can go that route or buy a child. I feel sorry for the child (and yes - I'd guess there are exceptions where the child actually benefits somehow).

>
>And there is lots of evidence that not all children are the genetic offspring of the man the mother was
>married to/living with or however you want to call it, even excluding artificial insemination because of male infertility.

Still basically using a man and a woman rather than something and something else.