However much skill it may or may not require pales in comparison to recharging a phone rocks and sticks. Papers maps and a small compass are cheap, light weight insurance.
In theory absolutely, in practice people still might not be using them or learning how to use them effectively. Average hikers seem to not really be experts and most people who aren't avid outdoorsy types aren't learning this stuff for any other reason.
There's a lot of stuff you just don't expect to ever need if you're used to life on the grid.
