What traditional occupations are gradually weakening and no one inherits them?

Shadow play artist. Think of a movie "One Man's Shadow Play", the successor of the fifth generation of shadow play, performing a shadow play without applause on a stage with only one person. In the remote mountain village, not many people like watching shadow play any more. In order to find someone to inherit the mantle and let the shadow play pass on, the old people invite people to learn in various ways. One day, several young Frenchmen came to a small mountain village. They are very interested in the traditional culture of China, so they recorded the production process of shadow play and tried their best to popularize it.