My partner relies completely on navigation assistants, but they didn't exist when I learned to drive, and I never bothered to adopt them. What's funny is that I feel just as stressed out trying to drive with the navigator as my partner does without it! I am so used to having a high-level sense of the route, and knowing the scale of the turns and the roads involved, that I feel confused and disoriented if I try to just blindly follow the directions. I'm not very good at blindly following, either - I can't relate the distances given to a real-world sense of scale, so I frequently miss turns. Really funny how different the mental strategies used to solve the same problem can be.