This would also open up the option of roleplaying a cartographer.
That's one way of looking at it ... the other would be I'm showing my age again. Before computers helped us out so much, back when I started computer gaming, you had to draw your own maps if you wanted them (also your own journal). I guess I'm guilty of thinking like that when I talked about my char drawing her own map, what sort of map would I make, and it wouldn't be anything like the ones supplied by Bethesda.
But I like your answer better ... roleplaying a cartographer!