Then don't raise them! Also, don't raise problems that are easily disproven with real numbers! Demographics is a terrible domain to vibe your way through.
> Knowing you are headed for bad times isn't something to live with, it's something to fix
I literally just showed you that demographic projections for India give realistic scenarios for the number of under-18 year olds being equal to the number of over-80 year olds by 2100. The worst case is a 5:1 ratio.
exactly. so in 2150, or 2200, or someday, it will be a problem. So yes, it is a problem even today. It's kind of why you don't stand on train tracks even if there are still 15 minutes.
Future problems need to be fixed, else you end up as the countries you listed, Korea and Germany. It's not that hard
Smooth population decline means much less contention on ressources, energy and living space, which is highly relevant when all of those are already somewhat at the limit.
Significant positive growth is clearly completely unsustainable even over centuries, and I don't see why a somewhat smaller total human population could not be just as successful/satisfied over the next decades.