I don't think we would need children artificially. I think we would bring our little lovers with us. Or, should there be someone who would want an extra bit of loving, promiscuity would be normal and natural... and only consensual.

Or, like Canada, immigration is a great way to grow a country. Passports would never be needed. Tolerance would be. Can you imagine a poor family from the deep ghettos of Anytown, USA, or even Junglerot, South America, who would bring a daughter to our island-nation? I would describe them as Royalty. All She would have to do is think chocolate chip cookie and 10 different citizens would come rushing to Her door with bags full of them!