Wondering....

I saw this in a school recently. There was something odd about the statement that struck me then and I have been wondering ever since what it is really supposed to mean. A half-conclusion that a friend and I reached upon was that in case of something negative, it is better for a child to get approval so that he/she does not develop inferiority complex. But, how is it supposed to act positively (as one of those many other things that go into development) for a kid? I don't remember when I stopped seeking approval, and how things used to be when I was a kid. Therefore, I ask you. Do you agree with this statement? If yes, why? Can you explain the phenomenon to me too?