Yes they should be allowed to IF they can prove the the purchase of a handgun is for their job. Also I read a comment about maturity levels. A lot of people are not mature enough to drive a car responsibly but we still allow people much younger than 18 to get a drivers license. Maturity has nothing to do with it. They get trained and sit through drivers ed. Have 18 year olds who want a handgun to show documentation that they received a federally accredited firearms training before the purchase as well.