A few summers ago, I drove across the states to visit my son and future
daughter-in-law. On learning I had a rand mcnally road map of the continental United States,
my future daughter-in-law asked me why I needed a paper map when a
factory installed gps was built into my auto.
I tried to explain the usefulness of seeing the big picture but I think it went
over her head.
What I realized a long time ago is that GPS is not always accurate. It has killed a lot of folks who trusted it blindly.