The birthrate for educated folks has been below replacement for a long time. Teenage moms probably aren’t in their mind cause they were raised among other UMC folks and it just doesn’t happen there. The US has been below replacement overall for even longer. We’ve relied on immigration for 50+ years.
Most of these discussions talk about cost of living and so forth - which are good metrics but the biggest influence of whether people have kids is if they’re getting into relationships. As any country has more women getting online, the birth rate plummets. It’s another factor we don’t talk about in these discussions. Social media has a huge effect on getting into relationships - and therefore having children.
Kids incur exceptional opportunity and real costs, and are unnecessary for a fulfilling life, so this outcome should not be surprising.
Unnecessary in a material existential sense, perhaps, when one exludes a systemic need to take care of the elderly. One could argue, however, that the responsibility when taking care of kids are one of the few means to live and grow as a human being.
https://www.pewresearch.org/short-reads/2019/08/02/why-is-th...
https://www.guttmacher.org/gpr/2014/09/what-behind-declines-...
https://www.cdc.gov/nchs/data/nhsr/nhsr104.pdf
Teen marriage rates (15-17) are alread exceptionally low. One would expect as laws are enacted at the state level to raise the minimum marriage age to 18, these declines should continue.
https://www.jahonline.org/article/S1054-139X(21)00341-4/full...
https://www.pewresearch.org/short-reads/2016/11/01/child-mar...
But the back-of-napkin math is hard for me to figure out from the given "births per 1,000" women per different age group.
cue the discussion about the dating crisis... A lot of people are having a hard time forming relationships for various reasons.