As far as personal experience is concerned, the existence of off-campus training institutions is largely due to our "one exam for life" and "hype to follow suit".
1, the teachers of off-campus training institutions are uneven and mobile, so making up lessons for students is limited to finishing classes. Unless there are a few in-service teachers, the teaching level of most people is really poor.
2, some students with weak self-control have developed passive study habits because they have participated in remedial training all the year round. There are also some children who can't even write their homework independently, let alone think independently, and want to ask the teacher whenever they have any questions.
There is also the most objective fact that few students with excellent results in the college entrance examination go to extra-curricular tutoring. In learning this matter, students' study habits and individual differences are very important. Take my generation for example, none of the outstanding students around me have attended any cram school.
For example, school education is the staple food, extracurricular tutoring is just snacks, and many of them are still untested snacks. Can children be healthy if snacks are eaten as staple food?
In the long run, it is only a part to cancel these extracurricular training institutions and prohibit teachers from making up lessons after class. It is also necessary to improve the teaching staff and teaching level of the school, and the treatment of teachers also needs to be improved. (You can't just ask the teacher to pay more, but there is no corresponding return)
In addition, how to solve the proportion of teachers in urban and rural areas, big cities and small cities, try to be fair, and finally achieve a virtuous circle will be a big problem with a long way to go.
In short, individuals are in favor of this, but it will inevitably touch the interests of some people, and it is estimated that they will be very opposed.