Why does the social purpose of education seem incomplete without a human teacher in the story?

Because learning is cut off from cooperation, dialogue, and group experience

The governing concept is that the social purpose of education includes cooperation, communication, empathy, and preparation for life with other people. A machine may deliver an individual lesson, but it does not create a community of learners by itself. Without classmates and a human teacher, children lose opportunities to compare ideas, help one another, listen respectfully, and learn social responsibility. Thus option C is correct. Option A is merely a location detail, option B describes delivery of information rather than social learning, and option D is irrelevant. The story’s criticism is not that lessons disappear, but that the shared human dimension becomes incomplete.

This is a Class 9 English question. Chapter: The Fun They Had. Topic: the importance of human teachers.