Bring back Prohibition.
Older than 21. Raise it even higher!
Leave it at 21 (in the USA).
Other (please explain).
"A woman is like a teabag, you never know how strong she is until she gets in hot water." - Eleanor Roosevelt
Keep your religion out of other people's marriages.
I can just imagine the carnage on the roads if we lower the drinking age.
Women (Nasty or otherwise) are going to be the reason that Donald Trump is NEVER President!
I am not a fan of the "graduated adult" standard. One is either of adult age or they are not, telling someone they can make major life decisions such as getting married, signing contracts with full responsibility, serving in a theater of war(being responsible for thousands or more dollars of military equipment), but then saying they "aren't mature enough" to have a beer, gamble in a casino, own a handgun, etc. is ridiculous.
All of those things require a mature mind and a weighing of consequence, either one is capable of those decisions in full or they are not. Pick either 18 or 21 and be done with it.
Neither side in an argument can find the truth when both make an absolute claim on it.