Senior citizens sway to old-time tunes at a former kindergarten in northern China, as educators turn their sights away from children in the face of a rapidly aging population and a baby bust.
Hundreds of millions of Chinese are set to enter old age in the coming decades while the country's chronically low birth rate leaves ever fewer people to replace them, official statistics show.
The crisis is already hitting the education sector, with thousands of preschools closing around the country as enrollments dry up.
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