Public schooling in Germany is near pure chalk and talk. This kills the natural motivational learning-by- playing habit in most of the children very effectively. The approaches of Waldorf, Montessori, etc are far better. Although not perfect.

Public schooling transports the state propaganda. Although in nowadays Germany, it is more propaganda by ignorance than by direct indoctrination. Or did you learn about direct democracy, non-fiat money, self-administration in school?