You are basically saying that having 3 kids is more expensive than having 2 kids, which is more expensive than having 1 kid... and that people take the extra co

You are basically saying that having 3 kids is more expensive than having 2 kids, which is more expensive than having 1 kid... and that people take the extra cost into consideration before having a kid. Indeed, they do, obviously. In many ways having a kid is quite a potent contraceptive (for having another kid). https://www.statista.com/statistics/183790/number-of-families-in-the-us-by-number-of-children/ https://www.statista.com/statistics/183790/number-of-familie...