Change the Legal Drinking Age from 21 to 18.

The current United States legal drinking age is 21. Many United States citizens disagree with this age. Many believe that the age to legally be able to purchase, consume or possess alcohol should be 18. A United States Citizen is allowed to vote when they are 18 years of age. 18 year old males are forced to join the Selective Service, for possible drafting. This means that 18-year old males can go to war. At age 18, a citizen is also inclined to jury duty. So, an 18-year old is given the responsibilities of voting, being selected for jury duty, and possibly being drafted for war. If an 18-year old citizen is to be given these responsibilities, why is the legal drinking age 21? Does the U.S. Government not trust those of us under 21? http://www.petitiononline.com/AD793/petition.html