Then the voting age needs to be raised to 21 as well because if a person isn't mature enough to own a gun until then they aren't mature enough to vote until then either.
The age of military volunteers needs to also be raised to 21.
You want adult children? FINE! Treat 'em like children.
Exactly .... 18 year olds aren’t what they used to be ...because of our moral decay, drugs, and pop culture , they aren’t adults by any stretch