I like freedom. I don't want the state telling me what I can and can't do. However, when I was 15 I had a motorcyle accident and have little doubt that wearing a helmet, which I sorely despised, saved my life. I'm glad the law required it at the time, how can I not be? The argument for an age requirement to forgo the helmet makes sense except that it will be tough to enforce and no dobut be violated by many.
On principle I'm for choice, by conscience I want youth to wear them.