If you're old enough to pick up a rifle and defend you country with it and you're old enough to die for your country your damn sure old enough to own a firearm. No and's if's or but's about it!
Absolutely!
I've believed that since they raised the drinking age to 21.
If today's youths are not responsible enough to purchase a firearm, then they are not responsible enough to have a driver's license, or serve in any branch of the armed services.
They either are adults, or they aren't.
Nobody can cherry pick.