What's the difference between homeless people in China and those abroad?

On the outside, beggars in the United States, like China, are in rags and have no romantic feelings at all. And many American vagrants stink. Sometimes you wait for the subway during rush hour. If you see that most of the carriages of a subway are full, but only one section is not so crowded, there must be a reason: there is probably a tramp lying in that carriage, and your nose will find them before your eyes.