First Borns

I am a "first born". My daughter and granddaughter are first borns also. Here is what the experts say our traits are:
strong achievement drive, responsibility, dependability authoritarianism, dominant, conservatism, insecurity, sensitiveness, jealousy, spoiled, stinginess, shrewdness, high dependency, need for affection and praise
I wonder if this is why we clash at times? I wonder if this is why we feel such a special bond and are so sensitive to each other? Even though Chloe is technically a first born, she is the baby of our family, therefore, I think that some of these traits aren't as strong in her. I think I think too deeply at times. Now where is THAT trait listed?