Comment: I disagree here:

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In post: Common Law

I disagree here:

By the 1950's, the courts and the legislatures pretty much threw out any pretense of right and started saying it is 100% privilege. Today, that is their stance.

Every supreme court case I have seen on this matter separates the question of whether you are using the roads for "private gain" or not. The high court has always upheld the right to travel for pleasure.