You raise 3 points -- all good, but not necesarilly correct or related.
1. How do you know that it will not change the health and consumption habits of of consumers? In fact, there are studies which show that people consume more when offered a large container and less when offered a small container. So, shrinking containers may well contribute to the change you are certain will not happen.
2. Who says, other than you, that the government has no right to to determine what we eat or drink? Maybe they shouldn't, but clearly they do e.g. alcohol. Why should that be the exception (as if it were the only one)? Because of the health risks associated with it? Let's face it, obesity is far more likely than alcohol, to wipe us out, both health-wise and financially.
3. And yes, people may order two or more drinks, as they should have the right to do, which is why this is not a "ban" on the drinks, but on a particular delivery system. If were an all on ban on the drinks, it would be far more difficult to defend from a personal liberty and civil rights perspective.



