Most first children grow up happy and well adjusted like most second and third and fourth children in a family. But a few of them have a harder time adjusting to the outside world.
A mother is apt to say, "The second baby is so easy. He doesn't cry. He is rarely a serious problem. He plays contentedly by himself, and yet he is so friendly if you go near him." When he's several years older, the mother says, 'The second is such a friendly, outgoing child that everybody just naturally loves him. When were walking down the street, strangers smile at him an stop us to ask how old he is. The only notice the older one afterward, to be polite. You can see that it hurts the older one's feelings. He craves attention much more than the second". Note this point.