Extremely low and unsustainable birth rates, such as those in Poland, Italy, South Korea.etc are not going to help, and it is not a sign of prosperity. Also, the birth rate in North Korea is lower than that in the United States.
Not only a question of education.
It's a question of hope.
Who would like to have children when you see where the world is heading?
The technology is getting more and more advanced, and our lives are being made easier. So the hope is definitely there, unless you are living in Somalia or North Korea. My life is definitely better now, when compared to 10 years ago.