I find it amusing that all the things that bother people about other drivers are the actions which prove a robot isn't driving.
"Oh my god! You changed your mind? How dare you!" "What, you made a mistake! You boob! I have never made a mistake in my life!"
Drivers are people too, they will change their minds and make mistakes and not know the way around new cities. Be prepared for that, or prepare for a rise in blood pressure. As for the speed limit, if they were to name it as people think of it, it would seem to be called "suggested speed". But that's not what it is nor what it is meant to be, which is why they don't raise it.