It's also a net gain averaged out over time if the couple produces more than 2 children. It's a very rare person that can individually contribute more to their

It's also a net gain averaged out over time if the couple produces more than 2 children. It's a very rare person that can individually contribute more to their society than 3 or more well-raised new individuals. Obviously this is a decision for couples to make for themselves, not for bureaucrats, economists, or activists to make for them.