Situations..

Same family,brother and sister,yet the approach, the way how they look at the world around, the rich and the poor (money level).. Difference. Where is the reason that the two are different? Education? The one in school, yes. The one in family? No. Different star sings, souls, gender? Yes. What is fair? Can we compare them? Can we say which one is happier? Can we say in which situations they are and why? Their social role? Their beliefs? Is there a system which would give them two (three, four....), which would offer them the same conditions? And is that good? Where it would lead?