However, he specifically said "will want to have children and feel/know that their children's lives will be good ones."

But this doesn't necessarily mean being richer. For example, many people are afraid of what unchecked climate change is going to mean for kids born today. No amount of individual or country wealth is going to fix that issue.

I have kids myself, but man... I really really worry about this. I do personally know people cite climate change as one factor in having no kids (or fewer kids). Some people even think that having kids will make it worse. They're not wrong...