There are many different forms of kicking the door, such as winding the door with a red rope, interlocking your arms and writing poems and riddles. The purpose of this link is to let the groom show his wit, humor and sincerity, and at the same time increase the joyful atmosphere of the wedding banquet.
The custom of kicking the car door originated from ancient tradition, and there are two versions. One theory is that in ancient times, the bride may encounter some bad atmosphere or evil things in the process of marriage, and kick the car door to dispel these evil things and protect the bride's peace. Another way of saying it is that kicking the car door means that the groom is determined to marry the bride, which means that he will overcome all difficulties to marry the bride.
It should be noted that this custom is mainly a funny ceremony with no clear meaning. Its main purpose is to make the wedding more interesting and unforgettable.