Why are people the way they are???

I am sure there are people in all our lives who we don't like they way they are. I am the kind of person who does not concern himself with what others are doing or what others have to say about people. I usually have one reaction when someone comes to me and says "Did you hear what so and so said or did?".....Who gives a shit!!! If it does not have to do with myself or my daughter the it is usually none of my business. Not that people are so concerned with what I am doing, but there are certain people especially in this family that seem to want to always know what is happening and what everyone is doing at all times. Like I asked....why?? Why do people become that way? I think this world would be alot better if people did not concern themselves with others so much....and I know people sometimes use the excuse...."Its because I care!" or some fake thing like that, but is just being nosy!!! So to all you people who are like that.....GET A LIFE!!!!