First of all, what is an upset? "Cold door", in the ancient sense, belongs to the cloth, and the family power is relatively low, but it is not the poor class. Cloth, in ancient times with profound concept of gate valve, meant low status. Even if you are admitted to Jinshi, you will be excluded everywhere. Most examiners will first understand the personal situation of the candidates when judging the results. Since the establishment of the imperial examination system in Sui and Tang Dynasties, the phenomenon of favoritism and malpractice has become more and more serious. Being born in a famous family means having more money to make friends and more contacts to win over examiners. Most examiners also attach great importance to students from gentry background, which is a deep-rooted traditional thought and difficult to get rid of.
Secondly, the educational resources of civilians and poor families are definitely dwarfed by those of famous families. He was born in a scholarly family, and he was exposed to it since he was a child, and his family education was strict. It makes the literati's cultural background from the gentry more profound. Moreover, the imperial examination is a long journey, from the college entrance examination, the rural examination, to the entrance examination, and then to the court examination. With the support of family financial resources, the gentry only concentrate on reading, but compared with the poor common people, they have to solve the problems of food and clothing and books by themselves. These alone discouraged a large number of scholars who wanted to take the imperial examination and get ahead.
Finally, the traffic in ancient times was inconvenient, and poor gentry in remote areas needed to go to Beijing to catch the exam. There are also many emergencies on the way to the exam. Poor Buyi people basically walked to Beijing without protection, so there were many emergencies on the road, and it was easy to go wrong. Countless poor civilian disciples died on the way to catch the exam.