It is superstitious behavior.
The person’s first and last name. Names are specific name symbols that humans give to each person in order to distinguish individuals. They are a symbol that distinguishes individual differences among groups of people through language and text information. Because of names, humans can communicate in a normal and orderly manner, so everyone has a name of their own.
Names only appeared after language was produced. Various ethnic groups have many customs in determining people's names. This habit is restricted by many cultural factors such as history, society, and ethnicity. A person's name usually has a certain meaning.
Main advantages:
The names of people, products, and objects. Names can be divided into broad and narrow senses, as well as nicknames, aliases, nicknames, nicknames, etc. The name in the broad sense includes the surname and first name of citizens as well as the names of legal entities and unincorporated groups; the name in the narrow sense only refers to the surname and first name of citizens. A combination of name and character. In ancient China, names and characters were used separately. Today, collectively referred to as "name", it refers to a name or given name.