In many countries, urban centers are experiencing a significant increase in their elderly populations, while young families are increasingly moving to the suburbs. While this spatial reshaping of age structures is praised for making neighborhoods quieter and more community-oriented, others criticize it for exacerbating imbalances in urban services and generational segregation. Should urban policymakers prioritize encouraging mixed-age communities, or should they accommodate this naturally occurring residential divide? Please articulate your position and provide specific reasons and examples to support it.