First, lottery admission. As the name implies, it is through the lottery to choose school admission. So in this respect, students actually have no right to choose, they are all given by heaven to decide what school they want to go to. Therefore, for students and parents, this aspect is a disadvantage, because they may have a favorite learning environment or a favorite school, but if they go to school by lottery, there is definitely no way to get what they want and enter their favorite school. Moreover, once the enrollment is confirmed, it is difficult to change, so it is also a very difficult choice for parents.
Second, the source of students is uneven. Therefore, for schools, the lottery enrollment method does not actually have certain advantages, because they can't and can't choose what level or source students they accept to enter their own schools. If there are some private schools, they are more willing to choose some powerful students to study in their own schools, and the lottery admission also gives each student a fair learning opportunity. For the school, the students who receive the lottery admission are actually not from the same source or level, and there may be some difficulties in the later management.
Third, the enrollment by lottery with different educational resources is actually a relatively fair educational opportunity. In the final analysis, it does not depend on strength or family background, but only on God's arrangement. However, in this case, children may get different educational resources. Some people may think that the educational resources between these schools may be the same, but there will still be a certain gap. Otherwise, there will be no famous schools, so for them, the students they accept are not chosen by themselves, which will increase the difficulty in later teaching or management. If the school suddenly changes to lottery admission, then they still need to make some preparations for the students enrolled by lottery, and even need to change the teaching methods.