If I'm living on my own then, I'll be much safer if I can exercise my right of self-defense. The majority of guns used in crime are acquired by theft or the black market. One-time criminals are not going to be stopped just because their guns are registered. The government should not register guns any more than it should register the First Amendment right to free speech. The explicit goal of the anti-gun lobby is to eventually ban guns in America.
Registration is just one step toward that goal.
Further Information More Guns, Less Crime, John Lott, University of Chicago Press 1998. David Kopel, Prometheus 1992. That Every Man be Armed, Stephen Halbrook 1994. The Boy Scouts, contact local groups.