What traditions should we stick to in China culture?

It must be some traditional festivals in China, such as Spring Festival, Dragon Boat Festival and Mid-Autumn Festival. Festivals such as Valentine's Day in China, in particular, have been replaced by Valentine's Day in the West. Many contemporary young people are very enthusiastic about Christmas and Valentine's Day, but they can't remember when Valentine's Day is in China. I think this needs to be changed, and these traditional festivals in China are worth adhering to.