In many developed countries, population aging is intensifying, while some developing nations face employment pressures stemming from a youth bulge. When government resources are limited, policymakers often have to make difficult trade-offs between expanding healthcare and pension expenditures for the elderly and creating educational and employment opportunities for the younger generation. Which demographic challenge do you believe is more detrimental to a society's long-term development? Please articulate your stance and support your argument with specific examples from countries or regions.