Is it necessary to go to Shanghai Pujiang School?

Pujiang school is not necessary, you can go if you are interested.

Pujiang School is a public welfare education platform for imparting China traditional cultural classics to young people, highlighting the systematicness and integrity of traditional classics.

The main contents of China's traditional cultural classics are Confucian classics with "Four Books and Five Classics" as the core and works of pre-Qin philosophers represented by Laozi, Zhuangzi, Xunzi and Zi Han. Its extension includes the representative classics of ancient China, such as classics, history, poems and collections, which can be called the essence of the times. These ancient books contain China people's world outlook, outlook on life, values and aesthetics, as well as all-round cultural attainments such as philosophy, history, literature and art that a person must possess.