What Is the Purpose of Modern Schooling?

He talks about what is the actual purpose of modern schooling. Why do we have this industrial school system? And why is it the same everywhere in the world? Isn't that strange? It prepares them to be good slaves, right? To obey their boss when they become a worker. That's the number one thing. Don't do foolish things, don't be independent. No, just sit there in your chair and obey the master.