So then sunglasses should be illegal? Now everyone with glasses don't understand fundamentals, let alone throw in the other percentage with cell phones. Even on a sunny day assuming the driver doesn't have glasses on, the pedestrian will be hard pressed to see in such detail. I rely on more hand gestures than anything, and that's coming from working on a university campus and living in a downtown city. Seems silly to click on a topic where people are talking about tint and throw in about laws as opposed to not viewing the thread if you're so against it. Courtesy is about using blinkers and moving slightly over for cyclists, I don't need to report other drivers eye color upon arriving to work/home.
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Now you're just being ridiculous. No one, except you, said anything about being able to distinguish eye color - that's preposterous and you know it. Even if the driver is wearing sunglasses, but the windows are clear so that you can see if they turned their head to look your way, and hopefully nod their head or wave their hand in addition, that's all you need in order to be fairly certain that they are aware of your presence, and to better understand the other driver's intent. When the windshield and/or front side windows are too dark, there is no way to tell anything, which makes it more difficult and less safe, compared to every vehicle respecting the law and not tinting those critical windows.
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We have different opinions on respect for laws, common sense & common courtesy, and neither of us will change the other's mind, so consider this dropped.