Kids don't seem to like the camera

It seems that no matter what kids give the camera an award look as if they don't know how to act when you are taking a photo of them. They know what a camera is because from the moment they are born their lives are documented by using a camera. Yet at a strange age when they become more self aware of themselves they feel as though they need to act a certain when when having their photograph taken. That even when trying to capture candid pictures, they try not to have their picture taken with out them being portrayed the way that they want to be perceived themselves and have others perceive them the same.