Perhaps what happened was that the conservative fat cats at the capitol all got together in a back room and set up a wheel and the majority leader was given the spin and it landed on 21. Or perhaps they played a nice little dice game adding up the sum of what a key people rolled. No one will ever really know where this ludicrous age limit on drinking came from but it's just a matter of time before it goes right back out the window.
One of the most abnormal aspects to the Alcohol Consumption Law is that of an 18-year-old who consumes can and will in fact be prosecuted as an adult. If an 18-year-old commits murder they are also tried and sentenced as an adult. The United States legislature, in holding up this law, is in fact giving young adults all of the downfalls without even the most basic level of privilege. .
A prime example of responsibility without privilege is this situation. Please go in your mind to being a male and just turning 18 years old. You are just about to enjoy the little pleasures of being 18. Besides being legal to place in prison and enter into contracts there isn't much to look forward to. One day while you are sitting at home you receive a letter from the United States government stating that you have been randomly selected by your peers to give your service to America" Armed Forces thereby being officially drafted. Remember you are only 18 and not even old enough to buy a common beverage. You then go off to war and die for your country. You went off to war because you were 18, selected by the government and believed to be responsible enough to carry out the will of your country. You went off to war and died for your country; a country who tells you that by being 18 you are just old enough to die; however too young to drink.
There is always the negative side to alcohol consumption. The fact that --% of teens dying in automobile accidents had alcohol in their system.