At one time a paper map was the best tool for navigation and could be used for years, maybe even decades. Not so today. Especially at local resolutions, map data and details can change in the course ...
Google Maps can get you from point A to point B (or C, or D) in many different ways. Most people search for routes on the fly, but you can also save them for convenience, and access some routes ...
Google Maps knows the fastest route to almost anywhere on Earth. But what if you have more than one place to visit? Perhaps you're a delivery driver who must cover several locations on a single ride.