What documentaries make the stories of ordinary people particularly touching?

The documentary "Dusk with Nowhere to Place" tells the life story of parents who lost their parents. By tracking and recording the families who lost their parents, we can pay attention to the family situation of urban life in China. Losing independence means being old and sad, and it also means No Country for Old Men. They are burdened with indelible mental trauma, and they are also faced with realistic material difficulties, and their dusk has nowhere to be placed.