What does a three-year old boy think when he realizes that some children are loved and some are not?

What does a four-year old girl endure when someone tells her that her mum really wanted to have a boy?How does a five-year old boy feel when all his brothers receive praise and he does not? What does a six-year old boy say when he learns that his good marks aren't as respectable as someone else's good marks?

How can a seven-year old girl understand that she isn't allowed to paint because it would be useless for her future?

Who does an eight-year old boy question when his brother gets a new coat and he has never had anything new?