Changes are always needed..it is something that you are not wishing for sometimes, it just comes and goes around your life. Sometimes it's for the best, but even when it's actually not,trust me somehow it is.
There is this point of every person's life when it gets to that feeling of tiredness about common things and that is when you change something you are not anymore comfortable with : it can be anything from appearance to your attitude to other people. It also depends on a situation you are in at that moment. This kind of changes is mostly the person's choice and decision that he had made. It can accuse his close friends and the members of his family.
I think that the change isn't always welcome, but it is ,for sure, something we can't live without. Because the result of it - is a progress of our living, it's the evolution of humans lives, that we can't forget about.