More broadly, as teenagers, most of us didn't had the maturity to truely grasp the meaning ; and the ones who did probably already where sensitive enough to don't fall in the same traps.

In the hundreds of people I crossed path with during my school time, I don't remember a single one who was actually enlightened by things in the program. The only ones who had kind of a shift from their original mindset did that outside of school or because of a teacher who went out of their way (and of the official program) to explain things.