What is the level of people living in alleys in Shanghai?

Most of the people who still live in the alleys are local elderly people in Shanghai. In the eyes of outsiders, alleys occupy an excellent golden position, and no market is also valuable.

There are human feelings and memories in the alley. Although life is inconvenient, I don't feel bad after getting used to it for a long time. But it is difficult to adapt to the cold of reinforced concrete after leaving the alley, so I will still choose the old alley.