As demographic structures in many cities around the world undergo dramatic shifts, with the ratio of young workers to retirees steadily declining, some argue that governments should channel the bulk of fiscal resources into elderly care services, while others maintain that prioritizing investment in education and infrastructure is essential to sustaining a city's long-term vitality. In your view, how should city administrators strike a balance between these two categories of social needs? Please present your perspective, supported by reasons and concrete examples.