Also in several counties and cities, and some parts of Busan and Seoul the fertility rates have reached 0.30 children per woman (And still falling quickly nationwide). How bad and severe this is for SK?
In: Other
You need a fertility rate of about 2.1 to sustain population.
Take a population with 1000 people born each year.
After three generations with a fertility rate of 2.1 you have 1000 people being born each year.
After three generations with a fertility rate of 0.68 you have about 30 people being born each year. A 97% reduction. This is a fairly catastrophic population collapse. “Children of Men” type situation.
To illustrate: Think of your elementary school. Maybe 30 kids in the class. You go back there a generation later for your kids school play. There’s 10 kids in the class. You go back a generation later for your grandkids school play. There’s 3 or 4 kids in the class. You get wheeled in a generation later to see your great grandkid’s school play. They’re the only kid in the year. (Obviously the school would be closed and consolidated long before… just trying to put a scale to this)
At the same time, you still have many of the original 1000 people born three generations before still about, except they’re all old and need to be supported for some time, which is going to be a lot of work for the tiny population you have coming in.
Edit: Just did the math for the 0.3 fertility rate in some areas. This is around 10 times worse then 0.68. After three generations the 1000 births per year above reduces to about 3.
Latest Answers