First, social development needs talents, and people need education to meet the requirements of society for ability, so the assessment mechanism has emerged. Under the assessment mechanism, the pressure on students will be too great. Taking Shanghai as an example, 24.39% of primary and middle school students once had suicidal thoughts, and 15.23% seriously considered this idea. The primary factor causing their mental health problems is academic pressure, and when they receive basic education, teenagers are young and relatively immature. In this case, it is very easy to have psychological problems and retaliatory play behavior after the exam. Delaying the examination time of lenient entrance and strict exit will prolong the study period to a certain extent, thus dispersing the academic pressure of students. Psychology generally agrees that 19 years old is the watershed between mature and immature areas of human mind. With the growth of age and rich experience, the psychological endurance of students entering higher education will be improved accordingly, and there will be no serious consequences caused by teenagers' inability to bear academic pressure in a large area. At this time, in the process of higher education, students' abilities in all aspects will be screened, and at the same time, a relatively balanced environment will be created, which can provide conditions for students to become better talents in the future, thus meeting the social demand for talents.

Second, lenient entry does not mean that all students are allowed to enter the field of higher education without principles. It will screen out students who have the ability to receive higher education but whose standards are slightly lower. Under this model, liberal arts education will enable more people to enjoy higher education resources and meet people's learning needs. People have potential, and strictness can stimulate potential. Higher education will provide students with an environment for autonomous learning, and students will improve their autonomous learning ability and practical ability for graduation. Yan Chu will use strict academic assessment and comprehensive ability assessment to test students' ability. People who can't meet the graduation standards are due to the defect of autonomous learning ability. When students have problems in the learning process, the school will use strict mechanisms to punish students and give them a warning. For example, two doctoral students did not participate in the teaching and research activities stipulated by the school for two weeks or more, and failed to register for two weeks after the deadline, and were expelled from Tsinghua. Only in this way can we ensure the quality of students in the higher education environment and avoid the waste of educational resources. In addition, the duty of higher education is to train talents needed by society, and the talents trained under strict system are more capable and meet the needs of society. Strict education can ensure the delivery of talents with comprehensive higher education knowledge to the society, so that they can better adapt to social development and thus build and serve the society.