Did the driving patterns that emerged after the automobile became popular (affordable) reflect the patterns that horse and buggy traffic was using?
If you look it up, 60% of the world’s population drives on the right, and 40% on the left, mostly because China drives on the left.
I’ve never had to drive on the left myself, but its scared the holy hell out of me in several Caribbean countries, especially when heading into a roundabout.
Actually, that’s a darn good question.
But it probably is as old as roads. Also ships have similar rules.