Having kids is really expensive, but most of the other reasons are hard to buy. 1. Infant mortality in the US has gone down every year for the past 70 years 2. Pollution in the air has gone down every decade for the past 40+ years 3. There aren't any laws against having a miscarriage?? 4. There isn't any good longitudinal data on playground, but the @NRPA benchmark reports between 2021-2023 have the playground-per-resident holding steady (2,277->2,287)