Man...there are a LOT of people here who I see everyday talking about the Constitution and the 2nd Amendment talking about denying a legal citizen from purchasing a gun? Hypocrisy! An 18 year old has as much right to protect his/her life as you are I do. It's not up to you or I to decide if they are mature enough. A person can seem mature one minute and go off the reservation the next...at any age. Some of you old farts leave me scratching my head after trades wondering if you are going to take it directly to a mall and start slaughtering unwary shoppers...All I can figure is, if I don't have reason to suspect you can't legally own a firearm, then my conscious is clear selling you one. If I think you are a douchebag, I will still sell to you because even douchebags have a right to protect themselves. I make it a point to only hand over unloaded guns during a trade/sell in hopes that your douchebaggery won't get me killed on sight. I'll stick around and chat after a trade. But if I see you start loading mags or cylinders, POOF...I'm gone. Once out of sight, you are usually out of mind. No offense.