In the era of wiki/scihub/libgen, the whole tutoring industry is worthless. They are just making easy money taking advantage of information asymmetry. Generally, easy money will not be allowed in China.
Edited: I'm talking specifically about Chinese tutoring industry. One comment below gives a very detailed description, which perfectly explains why I think it's worthless. We are all in the process of a revolution initiated by wiki/scihub/libgen. Whether agree with me or not, you are welcome.
Edited: I'm talking specifically about Chinese tutoring industry. One comment below gives a very detailed description, which perfectly explains why I think it's worthless. We are all in the process of a revolution initiated by wiki/scihub/libgen. Whether agree with me or not, you are welcome.