Just because you can vote doesn't mean you're as responsible as someone a few years older. Research tells us that a human body isn't fully finished developing until the age of 25. Why we allow someone to have a handgun who's frontal lobe (decision making center in the brain) own a firearm is beyond my comprehension. My household has a pistol in it and I'm over 25. I would sooner support raising the age to purchase before lowering the age to someone still in the throws off post-pubesant hormones who is more likely to act impulsively.