It seems to me that Kant's categorical imperative implies that we all have a duty to procreate. Is this actually the case?
I say this because it seems that any person choosing not having children would be forced to admit that, if their behavior was made a universal law, society would collapse, with a slowly aging and ailing population and nobody to take care of them. Society would die out, and the last generation before the end would be helpless geriatrics suffering the problems of old age with nobody younger to look after them.
So do Kantian ethics actually demand that we have children? Or is there a subtler way of looking at the issue?