I don't like going out for a ride unless I have a map. I love maps, and can not only read one, but can spend happy hours just perusing them, and have done. I had maps on my wall as a kid, including a streetmap of Milwaukee, which I've never visited.
But the regular stream of Satnav outrages shows that, yes, people are getting used to going out somewhere without knowing how to get there, or even where it is they are going. And I suspect that they are just the tip of an iceberg of numptiness.
Yes, we absolutely should teach people how to read maps. And teachers and Scout leaders and Woodcraft folk have been trying to pass on this valuable knowledge for years. But, if kids thought it boring and irrelevant when I was young (and they certainly did, in the vast majority), then now they have access to online mapping etc, they probably think it as relevant as how to build a steam engine.