[post-it]

Europe is definitely heavier on environmental design to enforce behaviours rather than signs, as nobody will obey a sign if they can get away with it.

[LarryMullins]

I think most people obey 4-way stop-sign intersections because they're afraid of getting T-boned by another car, not because they obey signs for the sake of obeying signs. People ignore signs when they can get away with it, but a 4-way stop-sign intersection is not such a case to anybody but the suicidally reckless.