I find it crazy that Americans allow turn signals to use the same red lights as brakes considering how many different safety rules they have. Like how all cars have to have amber reflectors on the front bumpers, which almost all European cars have to add almost as an afterthought [1], or how the door lock pins can't be flush with the door (at least I assume this is regulation since I never see non-flush door lock pins in European cars). And now the most recent one is the mandatory backup cameras, and I don't think I know any other country in the world where those are mandated by law.
[1] https://live.staticflickr.com/4623/39623465442_7519e01f0b_o....