The sociology of drinking(gladwell.com)

    There is something about the cultural dimension of social
    problems that eludes us. When confronted with the rowdy
    youth in the bar, we are happy to raise his drinking age,
    to tax his beer, to punish him if he drives under the 
    influence, and to push him into treatment if his habit 
    becomes an addiction. But we are reluctant to provide him
    with a positive and constructive example of how to drink.
    The consequences of that failure are considerable, 
    because, in the end, culture is a more powerful tool in 
    dealing with drinking than medicine, economics, or the 
    law.