A classroom functions like a capitalist workplace : both the workers and the students are alienated from their labor and must be as "efficient" as possible, both the boss and the teacher have absolute power over those who are under their authority :

those who disobey, don't want to work, satisfy their physic needs without their autorisation, are punished.
And homework is a tool used to reproduce the specialization and division of labor.

Once the child has finished school, he's a mentally and physically damaged human being unable to act without an authority and devoid of any spririt of rebellion and initiative : an easy prey for wage slavery

The school is part of the superstructure, its purpose is to reproduce capitalism, every principled marxist and anarchist should engage in a ruthless criticism of this institution and advocate for Youth Liberation if they want to truly bring positive change in this world

It goes without saying that most teachers are kind people with good intentions, but as long as the present state of things will exist, they will be shaped by the socioeconomic structures to finally becoming oppressors of the child

People who aren't that into anarchist theory can think at that school abolition is a stupid idea, and it's kinda understandable considering the omnipresence of the capitalist cultural hegemony. So here are some short texts on that topic https://twitter.com/Anarkismus_/status/1329561465599250451?s=20

I'll never get tired of using this meme btw