Responsible drinking

This is a photograph of the label on the back of a bottle of Beck’s Blue alcohol-free beer. Yes, alcohol-free. No alcohol. 

So why does the label need to bear the slogan “PLEASE DRINK RESPONSIBLY” and refer the drinker to the alcohol awareness charity Drinkaware? Surely anyone who chooses an alcohol-free beer is by definition a responsible drinker? 

Other producers of alcohol-free beers do not feel the need to include such a warning. (And in my experience their products also tend to be tastier, and cheaper, than Beck's Blue.)