1) The same reasons the police need them. 2) There are weekly examples of teenagers using these light rifles to defend themselves and others. 3) an AR-15 isn't a "fast-firing" gun. It's a "normal-firing" light rifle. 4) are you advocating them having heavier firearms?
So you’re saying kids under 21 have to have guns like police do to defend themselves? In other words let all kids have guns and it’ll be good?