The nanny state is a predictable outcome of Medicaid, Medicare and publicly funded healthcare in general. Once the government is paying for your healthcare instead of you paying for it, they have a big interest in controlling your behavior as it contributes to your health. They are paying the piper, so they want to call the tune. While Mayor Mike Bloomberg is a little extreme, the general attitude is that experts know better than you do, so they want to tell you what’s good for you. Also, they want to save on paying for your healthcare. So progressives/liberals think they must be able to control your activities, for your own good.