Personally I could never understand why the driver's side of the car is in the path of moving traffic. It seems if the Brits and the Yanks started driving on the other side of the road drivers wouldn't step out into traffic to get in and out of their cars.
Hmmmmm?
Ahaaaa! I can now step from the drivers side straight on to the sidewalk when I park! (LHD in the U.K.) : Still won't be able to lock it though.

It just means Mrs Jock gets to shuffle over to the passenger side! Either that or
she can dodge the traffic and lock/unlock the door!