First, competitive marriage does not conform to the ancient marriage rules. The ancient wedding ceremony paid attention to parents' life and matchmaker's words. So parents decide that a man is suitable for their daughter and can marry their daughter, which has become a rule between families. If you want to find the right man through your daughter's own opinion, it is impossible in ancient times, because ancient marriage is not about what you want, but what your parents think. Competing to recruit relatives simply does not conform to such ancient marriage regulations, so it may be rare in ancient times.
Second, it is unreasonable to compete for relatives. Ancient women seldom went out in public before marriage, and what's more, they couldn't go out. If you let your daughter go out to fight for marriage, it can be said that it is a very unreasonable thing, because those excellent sons often do not participate in this occasion, and even avoid it. Moreover, ancient women would not be courting, because courting requires great strength and endurance. Boudoir women often only know how to embroider, but their martial arts are poor, so it is unreasonable to fight for marriage.
Moreover, in ancient historical records, there are few cases of fighting for marriage. Only when some nomadic people choose their daughter's proud husband to judge whether they have the ability to protect their daughter will they choose this method.