Must disagree with you and agree with Pontoneer on this.
I was in charge of a few drivers (all young) at work who apparently could not move unless the TomTom told them which way to go. I gave one an address to take some urgent fittings to the emergency team waiting on site, 20 minutes later I looked out the window and he was still sitting in the works car park. I went out and he explained the TomTom had been left switched on and the battery run flat he had plugged it back in and was waiting on the battery recharging to find out how to get there, but it was slow in accepting a charge. I have had that happen to me, so it was possible.
I told him, he knew the area well enough to get within a mile of the address, start heading there and the TomTom will have started working by the time he got near, or, get your smartphone out and look up the address on Google maps? He said, I didn't know you could do that!
I started work in an age when we had no A to Z maps books, let alone smartphones or sat navs, we headed in the direction we needed to go and if we couldn't find the address we stopped and asked someone. All the old guys when I started knew the district like the back of their hands, not only could they find most addresses without any help, they could tell you the what side of the street the gas main ran and what size it was!
Problem nowadays is young people do not need to retain any knowledge like this as they have so many other options which means they have basically stopped thinking for themselves.