If you know frequently used destinations (routes are familiar) like work, park, Aquarium etc why at all you need maps? Will be useful when going to a new place

If you know frequently used destinations (routes are familiar) like work, park, Aquarium etc why at all you need maps? Will be useful when going to a new place for which you don't know the route. In any case you need to type the location right. I am not getting the usefulness of this App. Am I missing some thing??