Why might a young person in 1966 want to sing the red guard song?

A young person in 1966 might want to sing the Red Guard song as an expression of enthusiasm for the Cultural Revolution in China, which emphasized revolutionary ideals and the importance of youth in shaping the future. The song served as a rallying cry for solidarity among the youth and promoted a sense of purpose and identity aligned with the Communist Party's goals. Additionally, participating in such cultural expressions could have provided a sense of belonging and acceptance within the community, as well as a way to demonstrate loyalty to the Party and its leadership.