What are you going to do when you have a child and you realize that he doesn't have a good relationship with you, resulting in you not knowing how he is doing and not knowing what to push him to do? Sure, you can say that you're going to stop being so intimidating and hope that he'll at least feel safe enough to tell you how he's doing. But, you could also make communication his task and force him to write 5,000 words of self-criticism, and if he doesn't write it realistically, you go ahead and punish him. Then, you tell him that he should use all the seemingly unnecessary constraints as character enhancement, sharpening his own will. Can I prove that the latter is bad? What do I mean by "good" or "bad"? I can only say, on the basis of my intuition, that the latter is still inefficient even if these factors are taken into account. But I have nothing to prove; I only argue against the latter. In fact, I'm going to go farther. I would say that 99% of the constraints placed on a child for his benefit are wrong. There are other things that are similar to the "character enhancement" that I have been mentioning, such as the spirit of collectivism, the sense of collective honor, and the wisdom of traditional culture. There are intricate self-interests and altruisms, a group of people who want to be more like another group of people, less offended or "vulnerable", people who use reason as a tool of rebellion, blaming the constrainer for their inefficiency, and at the same time facing the accusations of reason against themselves, coupled with the glory of being the driving force, the shame, the sense of spectacle of a rapidly growing economy, even using rebellion as a self-flagellation (working hard to prove yourself to the teacher). Some people are strong enough to just submit and avoid the thoughts, which might make them feel better. That constrainer knows nothing, he has 0 knowledge of these things, but believes he should maintain the majesty. Communication is dangerous and it's best to just have the student write a self-criticism. BTW, some don't feel why people'd want to seek permission from friends or strangers for playing with the phone for a few days. This is my ideal culture. This is not a dangerous mentality.