All so well and good, but who amongst us is ever going to go there?? and if we did, would we be going without a guide?? Even the Sahara is covered with recognised routes that are mapped all be it in a vague sort of way. Truth of the matter is, we bumble about Britain and Europe where a map works just fine. More to the point, if (as I have) you study a map prior to going on a trip, you can spot random points of interest that could shape your journey, like a Roman road, or an ancient settlement.
All that said, it is good to learn navigation skills just to keep them alive. Being able to navigate without the use of GPS is a worthwhile skill that provides a great deal of satisfaction when successfully applied.