For those using the argument of military service, it does not make sense to equate a battlefield to main street. In addition, the 18 year old who wants to shoot a gun, has the option to join our military. Finally there are approximately 1.4M active duty military & 284k between 18-21 years. The military says 71% of US youth would not be fit for service. Why would we hand weapons to youth that our own military would not. This age limit keeps more people safe.