But I don't want THE GOVERNMENT telling me I can't quench my thirst with carbonated sugar water!
Don't worry, you can still drink soda! Youll just have to pay a little more to do it -- as with any public health concern, it's a question of paying a little now, or paying a LOT later. Consider cigarettes: everyone could buy dirt-cheap cigs back in the day, and that led to fun stuff like lung cancer, heart attacks, and other nasty long-term diseases.
Ultimately, that means fewer available hospital beds and doctors for treatment, plus it's damn expensive to care for patients with chronic conditions. Better to make the offending product -- tobacco -- more expensive to discourage use in the first place. You can still smoke, but the immediate consequence of a lighter wallet has proven a more effective deterrent than the long-term possibility of throat cancer. With those working in tandem, smoking becomes a pretty tough habit to sell.