Why?

Why? Why does everything you do matter to someone? It doesnt make sence to be mad or anything to anyone for any reason. People get mad and a moments it's ok to but at other moments it makes no sence to, talk it over and move on. I really strongly believe in the saying "you don't know someone until you walk around in there shoes". I really only beleive in it because its true there is no way you can really go around the fact that you don't know someone as well as you thought. Why do what kids say matter? If they say something to you, as long as you know that it isn't true it shouldn't matter that the say anything. In anything of everything it all comes down to you. You have the choice of listening to people but you also have the choice not to listen to them.