Should we protect tradition?

If you say that tradition means everything, I can say that it should be protected. Although many traditions are not necessarily correct, they have been circulating in China for thousands of years and must have certain functions or benefits. For example, it is a tradition to wear red clothes for the benefit of seals. However, for example, begging for ghosts all day and drinking those irrelevant and fundamental things should be ruled out and we should believe in science.