> you have to make your country/society a place where people will want to have children and feel/know that their children's lives will be good ones.

Empirically, that group exists, but they're often the minority to the "I just don't want kids" and "focus on other things" groups[0].

As others have pointed out, the world's population grew dramatically in most other times in history when the world around us was more harsh and less certain.

[0]https://www.axios.com/2024/07/25/adults-no-children-why-pew-...