Is 18 old enough?
I've always looked at it like this. At 18, society has deemed you old enough to go to war and die for your country, involuntarily if necessary by means of the draft. You are old enough to vote, apply for credit, get a loan, buy a home and/or car, get married, etc.. If you're old enough to buy a home and have a family, you're old enough to purchase a weapon with which to defend it. So this idea that you have to be 21 to do other things like buy a handgun, tobacco and alcohol makes no sense whatsoever.
Maybe 18 is no longer old enough. I have no problem with raising the age of consent to 21 but it should be universal and apply to everything, including voting.
That said, I would've been upset if that had happened 30yrs ago. Some of my best years was as a young adult finally being able to spend the day with a rifle without a parent present. We had a lot of fun and no one died. I really pity you liberal types who can't relate. Keeliar, you have my sympathy.