I disagree with all of you. Children act as they please with no enforcement, but if we were not born with a basic instinct of right and wrong, no human would have ever risen to the intellectual understanding that we need to pass our values to our children. It is natural for children to test the limits of right and wrong as they develop, for if they are not punished for bad and rewarded for good then there is no reason for them to care about what is right and wrong. All humans are naturally selfish and must choose not to be. Why would a selfish person choose not to be selfish if there is no personal advantage to do so?