These studies never deal with light or moderate alcohol consumption among young humans. However, natural experiments on drinking among young people have been going on for thousands of years around the world.
In many societies most people drink and they begin doing so in the home from a very early age. Examples familiar to most people include Italians, Jews, Greeks, Portuguese, French, Germans and Spaniards. 13 There is neither evidence or any reason to even suspect that members of these groups are brain impaired compared to those societies that do not permit young people to consume alcohol.
There appears to be absolutely no evidence whatsoever that the light or moderate consumption of alcohol by persons under the age of 21 causes any brain impairment or harm. Of course, that doesnt justify breaking any laws.
Federally-funded research does suggest that teens who drink alcohol with their parents are less likely than others to have either consumed alcohol or abused it in recent weeks according to a nation-wide study of over 6,200 teenagers in 242 communities across the U.S.
Drinking alcohol with parents may help teach them responsible drinking habits or extinguish some of the novelty or excitement of drinking according to senior researcher Dr. Kristie Long Foley of the School of Medicine at Wake Forest University. Dr. Foley describes drinking with parents as a protective behavior. 14