What if the single most important thing Denmark does is ensure the mother (and in many cases, the father) is allowed time for stress-free bonding with her child, and supported by a larger community of friends and family?
Demographically, part of the reason this works is that they are not having many children, but does not our own entire society depend in some ways on the well being of the children being born today?
There is this tendency to treat children as lumps for their first couple years, since they don’t “say” anything. But in important respects, these are the most important years. Every template for life is being laid, or not laid.