ELi5 Why is population decline a problem

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If we are running out of resources and increasing pollution does a smaller population not help with this? As a species we have shrunk in numbers before and clearly increased again. Really keen to understand more about this.

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Anonymous 0 Comments

I think it has to do with fears about what is going to happen with all the old people. In most current systems the population looks like a pyramid with lots of young people and less and less old people. When birth rates decline there is a shortage of working age people. So not enough people to sustain the retirement of the old people I believe is the problem. I’m no kind of expert

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