The thing is a lot of countries actually face a population crisis because there aren’t enough children to replace their ageing populations. Ideally the solution would be migration from places that are overpopulated, but this is politically frought. And most people (I think) who decide not to have kids are doing so because they can’t afford to in their increasingly unequal societies. So I’m fine to agree to disagree but my point was always that this is a societal issue more than a freedom of choice thing.