Well beyond taking care of the elderly, we need still need young healthy people to do the manual physical labor. Like crawling around in attics, laying asphalt, working in hot sun, etc.
Declining birth rates != a complete cessation of births. There will still be young people. Just fewer of them. They will get paid more for doing young people things.
Well beyond taking care of the elderly, we need still need young healthy people to do the manual physical labor. Like crawling around in attics, laying asphalt, working in hot sun, etc.
How did humans ever survive before there were 8 billion people? Oh how?
by using a lot less technologically advanced stuff that needed fewer people to sustain.
Declining birth rates != a complete cessation of births. There will still be young people. Just fewer of them. They will get paid more for doing young people things.
Sure, but with fewer people overall, there will be fewer houses, attics, and roads being built in the first place.