It always starts thus: Tobacco, of course, because it's bad for you. Salt - silly, but what harm in letting them control that? Save me from having to think about it.
One fine day they'll get to something you think is important, or inane, or offensive. And you'll be out of luck. Because your view is not rule-of-law, your view is what-I-and-people-who-think-like-me-think-is-reasonable.
That view dooms you.
If that assertion puzzles you, we have a long, long conversation ahead of us....