He doesn’t “get” chinuch, though.
In the first tapes, he made it sound s though the kids just changed on the spot. He said in an interview that he doesn’t get carried away thinking about the effect of the tapes, and quoted a story about kids who argued where to sit while listening to the shalom song. And then incorporated it into his last tape, when the kids become impatient right away again.
I give him more credit than he gives himself. Of course kids won’t change right away, but they def. absorb the messages, and slowly learn whats right. It also builds an inner knoledge of whats right, as they’ve absorbed the message when young, and will be more likely to actively work on themselves when older than kids who didn’t make a fuss about midos when younger.