Originally Posted by
Jerrys88
...they are just conditioned to expect traffic from the left, and that's typically where most or all of their attention is.
while that should be the norm, I don't find it to be universally true...I see a large number of drivers (mostly women) that check traffic to their RIGHT first, and then the left. and often, they let the vehicle roll forward before making the left side check...which is a recipe for disaster.
no explanation for this behavior...it seems dangerous as crap to me.