Except that raising children requires more time and resources than caring for elderly.

Source on this? Doesn’t sound right at all. According to my findings after a quick search, LTC (long-term care) takes a significantly higher fraction of OECD countries GDP than e.g. childcare+early education.

https://www.oecd.org/els/soc/PF3_1_Public_spending_on_childcare_and_early_education.pdf

https://www.oecd-ilibrary.org/sites/cb584fa2-en/index.html?itemId=/content/component/cb584fa2-en

Recently, for instance, at Site Zero, the world’s largest recycling center for plastics. Obviously, it depends on the material being recycled.