So my wife does most of our driving. She's a better driver. We both grew up near San Francisco. When we're in Texas I drive just because I'm familiar with the road layouts and the road etiquette (I've lived there, she hasn't). Even navigating I can't point stuff out fast enough. After being there a few weeks for a major conference, she finally caught on that my backseat driving was trying to get her to follow the local etiquette and get her around traffic (or more accurately, stop hanging out in the left lane and let people pass oh my gods) and suddenly we were moving faster.

I can't imagine working for waymo and jumping from san francisco to austin to orlando to DC to podunk to manila to paris and trying to keep all the different locales' driving etiquettes in my head so i was not just driving legally but safely. i mean i'm good but i'm not that good.