You are right, the practice of using braces is usually just for the sake of attaining an ideal smile. Like everything in our modernized culture, we are expected to be squeaky clean and perfect, attaining to the example of hollywood stars, in terms of beauty and perfection. People use all sorts of unnatural means to get that perfect body, perfect hair, and perfect smile. It is very sad to see that natural beauty is no longer appreciated in many places. Poor self-conscious girls shower themselves with makeup because of a culture that is obsessed with image.