Lower the federal age for alcohol purchase and consumption to 18

Lower the "drinking age" to 18. If 18 year old are considered adults under the law, and considered mentally capable and mature enough to fight and die for this country, they should be capable of consuming alcohol. Almost every other country in the western world has their age set at 18 or lower, it's time the U.S. move past the outdated age of 21 and grant the people we consider "adults" the ability to make adult decisions.