Gullible Americans like you are what enabled events like the invasion of Iraq over laughably false premises. Americans like you can’t even recognize manufactured consent when its staring you straight in the face.
Dancing grannies are actually one of the aspects about China that I absolutely love. I can go out anywhere I want at any time of the night and feel safe. Why? Hoards of wholesome dancing grannies fill all of those dark spaces normally occupied by drug addicts and hoodlums in Western countries.
They make the public spaces feel 'alive'. I've lived in my different cities in the West including those in Western Europe and North America, and all too often public spaces become completely dead and devoid of life all because people have become so fearful of offending others or looking stupid. Everyone just wants to keep to themselves and be left alone. Suburbs are practically ghost towns with everyone (probably on their devices) hiding inside their homes. Physical social networks are clearly on the decline and as a result, depression and loneliness has become an absolute epidemic in the West. The problem only gets exponentially worse as one ages.
Happy dancing grannies engaging in physical exercise, socializing and helping to keep the community safe is what Western countries to be aspiring to have, instead of criticizing and ridiculing.
Have a nice day.