[darkwater]

As an European I always wondered about why in the US they have red turn signals. It seems...odd, so to speak?

[bombcar]

It’s cheaper (or was) - early cars had one red light on each side and could blink it for a turn signal, but it was also the brake.

Later a second light was added for the taillight but they did it in the same bulb.

[darkwater]

Thanks for the explanation! It still seems odd to me that it hasn't been regulated somehow, having 2 different colors for 2 different actions is safer.

[fragmede]

Suburban and Americans aren't so good at living with the level of aggression that city driving requires, and so prefer having clearly delineated left turn time to something perceived as fighting in traffic.