Knn, the rednote has the demographic of middle to upper class population, a small segment of the big China population. No wonder they can speak English so well and has the money to show their lifestyle ... sorry.. should be sophisticated lifestyle.
they are educated , well-knowledge and smart. Humans are naturally good and kind and so with the good life they have, they are willing to share it with you for your knowledge and pleasure and good will.
the rest of the China might not be this representation at all.