The universal subjective human experience is that of interacting with other human beings, not all of whom are assumed to be "truth tellers". Discerning and dealing with falsehood or half-truths is the daily bread of a functioning mind.
Since when are we no longer to be trusted with discerning truth from lies?
Do you know what Velayateh Faqih, the theocratic doctrine of Ruhollah Khomeini and Iran's "Islamic Republic", means? It means 'guardianship of the learned'. According to Mr. Khomeini, your average adult Iranian is technically a "minor" that requires the "guardianship" of an "adult".
Are you a child or are you a citizen of a nation which had enshrined Free Speech as a fundamental instrument of its constitution and essence?