How can you be old enough to fight a war but not old enough to drink?

Is there an explanation for this? I'm over 21 and still have a hard time agreeing with this. IF the enlistment age was 21, I wouldn't see a problem with the drinking age being 21. I actually support it, most (not all) are a bit more responsible at 21. I just don't get why are we allowing 18 year olds to... show more Is there an explanation for this? I'm over 21 and still have a hard time agreeing with this. IF the enlistment age was 21, I wouldn't see a problem with the drinking age being 21. I actually support it, most (not all) are a bit more responsible at 21. I just don't get why are we allowing 18 year olds to sign there lives over, with a possible chance of getting killed. Yet they aren't old enough to drink a beer. You can't get any more hypocritical than that.
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