Try Crate and Barrel, I've always felt it is just Ikea at a higher price + quality. I suspect the price increase is greater than the increase in quality though.
I use the built in GPS, and I use it even for my daily commute. The biggest factors for me are that it uses google maps, it is traffic aware, and the screen is large enough to show detailed traffic for the route.
The UI just got a refresh with version 8.0 and it is now even easier to use. With a single swipe I can navigate to home or work (it is location and time aware, so it will navigate me to the right destination automatically), and the navigation now sticks to the top half of the screen when I have two apps open. I tend to leave the nav in fullscreen mode though since I like to see more of my route.
Its critical for long distance trips because it will also navigate you through superchargers automatically as needed, and will tell you how long you will need to charge at each, along with an estimate of your trip time. I have taken a lot of long trips since getting the Tesla so this has been invaluable.
Supposedly the next update will use the navigation to guide the autopilot (it will take exit ramps between highways automatically).
I feel like it is a mistake to assume all families will teach (or know) these skills. It seems like that assumption could perpetuate inequality. I was fortunate enough to be raised by two parents in a stable environment but that wasn't the case for some of my friends and cousins. They ask me for advice on buying a car, getting a mortgage, building credit, investing, etc. Some don't even understand why you would save money ("Isn't that what social security is for?"). They call me "the adult" but I was just lucky enough to have a father familiar with these concepts and willing to talk about them.