i wonder for those with super deep pockets, would that change the equation? (ie. kids go overseas because better opportunities or cant survive locally or bad relationship with parents or family, so if the kids don't need so much time on work for money/survival then maybe can spend more time with family so maybe for those not so well off having less kids is better as more chances of them able to stay near parents although it seems like for those less well off they tend to have more babies not sure if that is to do with their job being more labor intensive type?) / of course there are also inflation and other future dark events we are yet to face/know...