I'm old fashioned, I use a map when I'm going anywhere in the car, we have a satnav but have found from experience it can't be trusted and will often take one off on a wild goose chase doing far more miles than is necessary. Even today ,the satnav told us a place we were heading for was 150 miles away, when it was actually twelve. Mind you, it is very good at finding actual addresses in town.
I can imagine the navigating officer of a big ship being perfectly happy, and ninetynine times out of a hundred he will be fine, but there is that odd occasion when a look at a physical chart with all it's information, must be useful.
In my motor barging days when I knew the waters I frequented like the backs of my hands and could say with certainty something like "We'll pick up the Blacktail Spit (buoy) in fifteen minutes", I'd still have a chart open on the side. You can never be too sure.