All of these disciplinary methods look ridiculous when viewed in this way. But the reason for this is that our society at some point decided that children and adults respond to others according to different principles of behavior. This has been a very harmful mistake. The truth is that children, like adults, feel most like cooperating with those who treat them with kindness, respect, understanding, and dignity. In our society, we have been asking the wrong question.
Age makes no difference.
It's simple, straightforward, and effective. And we don't need to spend any time finding out what age someone is before consulting this rule. One size fits all.