well, you would think so! however I heard today that a few supermarkets here had been told not to display daffodils next to the fruit and veg dept. because people may try and eat them. I made me laugh, death by daffodil?
I'll go along with warnings on the labels if it will bring the public's attention to the connection between sugary drinks and obesity and diabetes. Some government programs to promote healthier life styles have been remarkably successful. Think of how successful the anti smoking campaign has been. I don't see anyone being hurt by the warning label except maybe the sugary drink manufacturers.