It is not just LEDs causing the problem, nor the switch location, but those combined with "projector beam lighting" mis-aligned or reacting to surface level changes are blinding. Some of the vehicles also have auto "light sensors" that may be covered over or malfunctioning to add even more hazards. Then there are the drivers that ride with their blinker or hazard lights on indefinitely??? One can't "forget" when a "Willys' one-hand signal" was "standard equipment", and 6V lights were never "too bright". Ahhhh the good ole days...