Jacques Ellul, whose book Propaganda is a reflection on the phenomenon, warned us that prosperous children are more susceptible than others to the effects of schooling because they are promised more lifelong comfort and security for yielding wholly:
[...] critical judgment disappears altogether, for in no way can there ever be collective critical judgment [...] The individual can no longer judge for himself because he inescapably relates his thoughts to the entire complex of values and prejudices established by propaganda. With regard to political situations, he is given ready-made value judgments invested with the power of truth by the number of supporters and the word of experts. (p. 190)
The individual has no chance to exercise his judgment either on principal questions or on their implication; this leads to the atrophy of a faculty not comfortably exercised under any conditions. What the individual loses is never easy to revive. Once personal judgment and critical faculties have disappeared or have been atrophied, they will not simply reappear when propaganda has been suppressed [...] years of intellectual and spiritual education would be needed to restore such faculties. The propagandee, if deprived of one propaganda, will immediately adopt another; this will spare him the agony of finding himself vis-à-vis some event without a ready-made opinion, and obliged to judge it for himself. (p. 190)