People will not like this, but the reason populations are shrinking is because women don't want to have many kids. Ask any modern woman, the majority view child rearing as a huge burden, and most would think three kids is way too much.
For perspective, my grand grand mother had 16 kids. All her grand grand children who are my generation that I know of have either two or three, with no apparent plans to have any more.
For perspective, my grand grand mother had 16 kids. All her grand grand children who are my generation that I know of have either two or three, with no apparent plans to have any more.