Can a stall really make money?

Stalling is a relatively simple way of doing business. It is obviously an incredible topic to say that street stalls are very profitable. As we all know, input and income are directly proportional, just as Einstein's special theory of relativity and general theory of relativity mentioned that the transformation between substances is always equal, and it is impossible to have more or less. The stall investment is very small. Suppose you can make a lot of money with little investment, who will make more investment?

Therefore, street vendors can maintain the life of a family and need to gradually improve the economy of a region. It is absolutely impossible for a person to get rich overnight, let alone become rich from now on. Investment is directly proportional to making money, and it is the same in any region and any economic situation. Therefore, we should have a correct understanding of vendors, never exaggerate, never be too blind, so as to make the right choice.