The whole point is without the licensing requirement if you go to a place like super cuts you probably will have let someone who hasn't studied cut your hair at some point. How do you know? If you ask do you ask every time? What about someone who is travelling how would they know? If only there was some type of way to tell people this person is competent is keeping their tools clean...because the license is not that you are good at cutting hair it is that you can cut hair without cutting the person...