I still keep some maps in my car just in case my cell phone battery dies.
Call me a Luddite. There is also a very large park not too far away with meandering paths and iffy cell service, so I keep a map in my pocket so I don’t accidentally head off on a five or seven mile route when what I want is less than two miles.
Plus, some basic understanding of navigation is required, because in the USA, if you are not careful, when you enter the name of a town into a map app, you can be sent to a different STATE from the one you planned to visit. A hilarious mistake to view, assuming you don’t blindly follow directions.