Study: Keep the Kids Away From the Liquor Cabinet

(I'm suffering a little bin Laden fatigue, and since this is my blog, I'm allowed to violate my own rules, like not talking about beer today.)

I have no horse in this race (or kids in the house), but I know studies like this provoke strong reactions. Still, I think it's wise not to dismiss them out of hand.
A new study shows that teens who drink with an adult supervising are more likely to develop problems with alcohol than kids who aren’t allowed to touch the stuff till they hit age 21.
I think we all want the same thing for our successor generations: healthy, happy people who enjoy superb beer in moderation. Since the goal is clear, it's worth being open minded about the method. However, it's also worth noting that the methodology mentioned in the story doesn't seem to be perfectly brilliant. Maybe the actual study was better.

Your thoughts?