Because New Year's Eve is the real Chinese New Year, on this day. Everyone wants to have a wonderful New Year. Whoever quarrels will affect the joy and joy of the whole family.
If we can quarrel on New Year's Eve, it means that the relationship has deteriorated to a certain extent. Then it's not as simple as quarreling. Therefore, we must control our emotions, and don't affect a family's mood and luck for a year because of poor personal emotional control.
Because China is a very traditional and custom-oriented country. During the New Year in China, everyone likes to hold festivals. If there is a quarrel, everyone feels angry and it is not good for the people around them.