Freedom of speech has a necessary counterpart - freedom of listening. Without the freedom to listen or not to listen to the speaker, free speech is meaningless. As a corollary, therefore, people have the right to ignore the speech of anyone they wish. To force someone to listen to you is indoctrination, regardless of whether you speak truth or falsity.
"Education" is a form of speech. Compulsory education means forcing people to listen to this speech. Thus, the freedom of listening is violated, and freedom of speech is rendered meaningless, and democracy is rendered meaningless.
"Education" is a form of speech. Compulsory education means forcing people to listen to this speech. Thus, the freedom of listening is violated, and freedom of speech is rendered meaningless, and democracy is rendered meaningless.