In a few places, driving too passively (as AI cars seem to do) will cause aggressive drivers to create dangerous situations for you. They don't want to be stuck

In a few places, driving too passively (as AI cars seem to do) will cause aggressive drivers to create dangerous situations for you. They don't want to be stuck behind someone who's letting people in. I also wonder if the AI cars go the speed limit on freeways, cause sometimes that's worse than matching traffic that's speeding a bit.