Is it necessary to learn poetry appreciation and personality cultivation?

Poetry appreciation doesn't matter, but knowing it is better, which can enhance the cultivation of personality. But the cultivation of personality needs learning, not only in a book, but also in the accumulation of knowledge, such as poetry, piano, books and painting hobbies. It is the most suitable exercise and formation for personality cultivation. Why do you say that a person should learn to cultivate and be cultivated? Think about it, if an uneducated person, his way of doing things in society, his reckless personality, what a person without any accomplishment will look like.