Why should pianos be graded?

Let me give you my opinion. First, in order to earn money by passing the exam, it is probably 200 yuan once, and its cost is 20 yuan. Think about how much money you can earn. The second is to satisfy the vanity of children and parents. In addition, there is another saying about the graded examination, that is, it is necessary to take the examination and how to use the method. It is necessary to take an examination of art specialty students (the college entrance examination takes a cultural course, and if you pass the exam, you will get extra points on the basis of the original cultural course), that is to say, you have to take a grade examination certificate to take the exam, but if you have it, you will not get extra points, and you have to take the exam. This matter is extremely unreasonable. A family without witnesses may not have that level. Moreover, you don't need this certificate to make up for the piano major (such as the piano major of the Central Conservatory of Music), and you don't need it to apply for the piano major. On the contrary, you need to make up for art students, only some colleges and universities. In addition, in my experience, as long as learning a major is linked to utility, it is generally not good, because it is not fun, but a task, and even the most difficult task will become stale, otherwise students may find it difficult to learn.