21 legal age to drink

First of all i am totally agree with 21 should be the legal age to drink I think this is the best and is the usual in most of the countries but I understand people that disobey and takes this law asan injustice and even some people think is a joke.
How is this possible, when the law is so widely disobeyed? Not surprisingly, the law actually does deter a lot of young people from drinking untilthey reach their 21st birthday. More important, many youth who choose to drink do so less frequently, and with less intensity, than they would absent the law, and they take other steps, such as usinga designated driver, to avoid coming to the attention of authorities.
Despite its demonstrated effectiveness, the law does strike some people as unfair. At age 18, people can vote, join the military,sign binding contracts, and get married without parental consent (except in Mississippi and Nebraska), so it’s understandable that people ask why an 18-year-old cannot legally buy a drink or be inpossession of alcohol. One answer, of course, is that the public’s perception of what is fair is only one of many factors that affect government policy. Obviously, we also have to consider public healthand safety and weigh that against any perceived unfairness.
In that context, it’s important to remember that there is no single cutoff point at which a person assumes all of the rights andprivileges of adulthood. The chosen age is usually 18, but not always: by federal law, a person must be 21 to buy a handgun from a federally licensed dealer, although not from a nonprofessional private seller.In Alabama, Alaska, New Jersey, and Utah, a person cannot buy tobacco legally until age 19. State gambling laws vary tremendously, with the legal age for different types of gambling ranging from 18to 21 years. In each policy area, the age of majority that’s specified has emerged from a careful assessment of benefits and risks.
The minimum legal drinking age of 21 is controversial, but it is...