Apparently the government in New York City is pretty big and has decided to police the size of soda people drink in that city, they currently also tax you for drinking soda. Therefore, they have decided for the citizens of that city that anything larger than 16oz is bad for you and will be prohibited! The government doesn't trust that citizens can trust which cup to buy therefore, they are making the decision for you.
However, the ban will not apply to diet soda, fruit juice (I'm scratching my head on why this one wasn't ban because it has so much sugar it can rotten your teeth!) dairy-based drinks like milkshakes, alcoholic beverages.
“Obesity is a nationwide problem, and all over the United States, public health officials are wringing their hands saying, ‘Oh, this is terrible,’ ” Mr. Bloomberg said in an interview on Wednesday in the Governor’s Room at City Hall.
Mr. Bloomberg, being obese for some people doesn't come from drinking sodas only, it comes from health issues to make a lifestyle change they are not ready to make just yet. People are happy with their choices and size of clothes they wear, you will never be able to change that by changing the cup soda size they buy. They will buy two cups instead of one. Next thing this guy will ban is candy!
Government is ignorant. Leave people alone to make their own choices.