We all are human, God had given same brain to all the human. Few people try to use their brains and just don't. Those who are very careful about studies of career they try use their brains as much as they can, but that doesn't mean that those who are not so serious about their career or study they don't use their brains. They use their brains in different sphere of their life. Another thing is that we have got many facilities around us so here is an opportunity for every one to use our in different kind of things.