That's a false argument. You seem to be going on the theory that anyone who wants a society for laws is somehow "nanny." But what you are essentially espousing is anarchy.
There is a role for the rule of law in a society. Just because we believe in one law does not make it hypocritical to be against another law. It isn't one or the other.
For the smoking law, I am against it because it is based only on emotion, the need for the law has not been proven, and even if the problem is real it does nothing to actually fix the problem. That's a nanny law - knee jerk, emotional, and worthless.
The unattended children law was based on a demonstrated problem and the law helps solve the problem.