Pro to the question "Should the Drinking Age Be Lowered from 21 to a Younger Age?"
"Return the drinking age to 18 -- and then enforce the law. The current system, which forbids alcohol to Americans under 21, is widely flouted, with disastrous consequences. Teaching people to drink responsibly before they turn 21 would enormously enhance public health. Now, high school and college kids view dangerous binge drinking as a rite of passage.
The current law, passed in all 50 states in the 1980s, was intended to diminish the number of traffic deaths caused by young drunk drivers. It has succeeded in that -- but tougher seatbelt and D.U.I. rules have contributed to the decrease, too. Raising the drinking age hasn't reduced drinking -- it's merely driven it underground, to the riskiest of settings: unsupervised high school blowouts and fraternity parties that make 'Animal House' look quaint. This age segregation leads the drinking away from adults, who could model moderation."
"Return the Drinking Age to 18, and Enforce It," www.nytimes.com, Feb. 10, 2015