Alcoholic legal age?

As to my current knowledge - the current age of driving in the U.S is 16. The age of appearance in an adult movie is 18 years, but for as long as back until the 80s the legal age of drinking has been 21.

There's something that doesn't make any sense. I read an article some months ago where there were a petition from parents and college teachers who signed up for lowering the legal age of possessing alcoholic beverages.

This was due to the late "introduction" to alcoholic beverages. According to Wikipedia, it is allowed during consent of a guardian - parent or other legal guardian. The "late introduction" to alcoholic beverages might work against its planned purpose. It might lead to more uncontrolled scenarios than previously suggested. As to the Norwegian age limit of 18 - a lot of teachers etc.  knows that minors (their pupils) do drink beer etc. at parties - some have included ethics of drinking in the school, which I think might have a better effect than prohibition - than if they are suddenly introduced to the alcohol on college at the age of 21. As well as I think it might lead to parents buying alcoholic beverages to their kids far more often, when it comes to the age between 16 and 21 - as of the age limit continues to be 21.

In Norway, the legal age has been 18 for a long time. However, how long I don't know. In Norway the legal age for buying alcoholic beverage has been 18, this taken into consideration the amount of percentage of alcohol in the beverage. A beer might contain 4.7% alcohol whilst a bottle of vodka, 21,9%. For beverages above 22% the age limit is 20 years.

Taken into consideration, in New York there lives more than 3 times the amount of people in Norway (pop. 4,6 million) - There have been quite a debate about the legal age in Norway due to the nightlife troubles the past four-five years. People have gotten into brawls and the local police force start complaining. As well as my hometown - Stavanger, which households approx. 160,000 people - there's a lot of home-alone parties being held. - I know - I have participated in some.

A friend of mine had a rather intelligent quote:

"For many - the Norwegian culture of drinking might be a provocation, but for the Norwegian culture, it might be a provocation not to be drinking"

I'm not trying to agitate that there should be more, or there should be less alcohol flowing in the streets, I want to make sure there's a fine line between complaining and agitating. Still there sure ought to be a solution to the debate.

Obvious there has been trouble regarding minors getting alcoholic beverages far too easy - call a friend that's above the legal age. - as I referred to adults buying beverage for their kids, because they feel the age limit is ridicules. 

Just a thought.