It's hard to reduce the US to a single culture. Alcohol consumption habits vary greatly from region to region, or even city to city depending on where you live. I've noticed that heavy drinkers tend to cluster with other heavy drinkers. The more you see your friends and coworkers binge drinking regularly, the more you feel it's an acceptable and even common behavior. Likewise, non-drinkers tend to cluster with each o…
The article says something else:
>> the median consumption among those who do drink is just three beverages per week.
You might get less than 1 / week by including non-drinkers, who are (according to the article) at least 30% of American adults. But they're 0% of American alcohol drinkers.