Are calligraphy, piano, painting and other courses really necessary?

My child has a piano exam. At first, he was inspired by music and played happily. Later, he found it bad. After we paid the money, he just practiced casually, wasting time and money, and let him take the exam. Moreover, after the exam, he will learn more and play more complicated music. We only stipulate that he practice for half an hour every day. He practiced for a long time, and the children got bored, and we were tired of listening to [covering our faces]. Sometimes he plays casually. The exam will come slowly, and the most important thing is not to let the children lose their enthusiasm for music.

If you really have this hobby, you can study and develop while you are young. With the growth of age, there is basically not much time for hobbies. Because heavy homework and study make children overwhelmed and have no time to develop hobbies. However, I have always felt that having a hobby is of great help to my later life. Imagine that when you are depressed, writing a word or drawing a work by yourself is a very effective way to vent negative energy emotions.

I don't think it's necessary to take the exam. It takes a long time to practice. No one can finish it in one day. Taking the exam is equivalent to adding a grade to hobbies and specialties. I have been exposed to the grading test of strings, that is, I can practice one or two required tracks and pass the test. Many children have passed the 10 level, and he still can't fully understand and master it. After a long time, I stopped playing and got rusty.