Where does the best man culture come from? The Arabian Peninsula

Best man culture spread from East Asia to Arabia. The best man in East Asian weddings originated from ancient taxi weddings. At the wedding, the bridesmaid and the best man are the representatives of the woman's family and the man's family respectively. At the bride's wedding, they changed their minds, married the best man, exchanged places, and washed and ate with each other, indicating an exchange of trust. Another way of saying it is that you are afraid of poisoning each other and use it as proof. Later, it evolved into a ceremony to express mutual trust, which influenced the traditional weddings in Japan and the Korean Peninsula.