re: If you raise the age to buy guns to 21, the age to enter the military should also be 21

But you are saying that an 18 year old can be trusted with a gun?

I saw tons of loaded weapons in the military. Most of them in the hands of 18-20 year olds.

Only time I was ever afraid of one, is on 9-11-01. Checked into San Diego 32nd Street. Had several weapons trained on me while I was showing my orders.