I agree that punishment sometimes has to be used. But I think the reason why they emphasized why it didn't work, is because punishment is the go to tool for par

I agree that punishment sometimes has to be used. But I think the reason why they emphasized why it didn't work, is because punishment is the go to tool for parents almost no matter what you tell them. Despite know all this advice I easily fall into the trap myself, and I see clearly how inefficient it usually is. Punishment is often the simple way out when you are too tired to really put the effort into doing it the proper way. Making sure you observe proper behavior and complement on that requires more effort. If I got a good amount of energy I am also usually able to convince my child to go with what I want them to without shouting, or threaten with punishment. But that often requires more imagination and when you are tired and worn out, there is no energy left to be imaginative.