Can't we just make up our own minds about how to navigate? What suits some might not suit others.
I fly SAR. We use GPS extensively. We also make use of VORs, (OK only very rarely but that is due to altitude and location) NDBs, DME and DR (albeit calculated by computer from a Doppler unit). We also spend much of our time eyes out with a chart on the lap. We train to navigate low level over featureless landscape to find a pile of rocks without the GPS. GPS may be accurate enough, but cartography is not. We would be mad to simply use GPS to get us to a casualty at the bottom of a cliff/half way up a mountain. GPS gets us to the ball park then we use the eye ball. The GPS is also backed up by mandraulic DR for gross error checking. In other words all means of navigation have their place in aviation. OK we are perhaps ususual in that we use all of them.
It is vitally important that all VFR pilots can read maps and charts. Learning traditional navigation techniques helps that learning process. Shamefully it is poorly taught at PPL level. Partly because we are all a little bit gadgety, partly because no one taught the instructor to navigate properly, partly because we want to fly not study when learning to aviate. With a little more time, map reading could be made more accessible and easier.