“I think the big mistake in schools is trying to teach children anything, and by using fear as the basic motivation. Fear of getting failing grades, fear of not staying with your class, etc. Interest can produce learning on a scale compared to fear as a nuclear explosion to a firecracker.”
This is like wondering if painting the walls green will help. There's so much else wrong that needs fixing first that this is a silly triviality. Like treating the sniffles when the patient has terminal cancer.