It's should be everyone's right to be stupid. I don't think that any "normally gifted person" is going to switch from water to redbull from advertising. They may be influenced to buy that redbull/monster/battery+ or whatever if they are drinking some similar rubbish already. In France it's forbidden to display any publicity for alcoholic beverages in motorsports. I don't believe people are drinking more or less because of advertising. In the late 90s advertising of tobacco/cigarettes was banned "for health". Who started smoking because the "Bastos" logo was displayed on some rallycars? Maybe those advertisers could, in long term, indeed change minds of those already smoking. People kept smoking just as much until governments started to ban smoking in most places and made it extremely expensive to smoke... I haven't heard a positive word from the banning of those advertisers, especially from rally enthusiasts. In contrary, everyone has been complaining, and is still complaining, about how much money has been taken away from all kinds of motorsport. Now you want the same with energy drinks?