The influence of birth order on personality

Whether awaking or not, there must be some influence of birth order on personality. When we compare brothers and sisters, especially on the same sex members, we can realize that there is the difference on their personality. For example, the oldest one seems more strict and nervous than younger ones. They are stiff and proper. They act big and try to control others. That’s because they are the first born. When they were born their parents were young and had no experience for child care. They raised a child by trial and error. They were strict with the child what to do or not to do with following the direction they just learned. They were nervous and stiff. Therefore, the oldest one is influenced by those parents behavior. So, once the second child is born, if the oldest felt being dominated, as he felt more pressure from parents, more he would become bossy to younger. Of course there is the exception, however, I am the oldest sister and feel that I am the one like these myself after all.