Be patient, and fill in your area in your profile.
Usually, one of the easiest ways to get age verified is to go to a game. If you arrange a gun rental ahead of time, it will let you try out the sport before you invest hundred of dollars. Many games, especially the larger ones, will have at least 1 age-verifier present
EDIT: sorry Steve, you beat me too it
It's better to light a candle, than to curse the darkness