Why are there so many black-and-white humanistic documentary photography?

Because the master likes to develop his own photos, and black and white film development is quite simple. However, the developing program C4 1 for color film is not so simple, and it has very precise requirements for temperature and time control, which is difficult for me to master. They all need to be sent to the store for mechanical washing with Kodak or Fuji printer. Many photos of the master are black and white, which is also the object that future generations try their best to imitate.

From an artistic point of view, it doesn't mean that color is more expressive than black and white. Black and white take away the color, but people pay more attention to the shooting itself. Of course, the colors are rich and suitable for more subjects.