You can't use a spoon for a funeral banquet, probably because the spoon is related to the homonym of "death". In China culture, death usually refers to the funeral when a relative dies, which is also considered as a manifestation of filial piety. The word "spoon" is homophonic with the word "end", which may be regarded as an unlucky symbol. Therefore, at funeral banquets, spoons are generally not used. However, this is only a possible explanation, and different regions and beliefs may have different cultural customs and explanations.