You are right, but I'm a little bit radical than you. I don't believe in the effect of criticims. You can teach a child with careful and patience how to act in the right way: with an explanation or better with your model, but we shouldn't critisize a child bc in the end, (s)he is learning.

I see it everyday in my classroom. They learn in the way I explain above, and at the same time they are happy learning and feel safe in relation to what they can do and what you can do for them.

But, Orvel, our parents lack of experience and they didn't know that they were wrong.