Back before ubiquitous smart phones, I had a (now ex) partner who I discovered couldn't read a map to save their life. I printed out the Google maps route to the nearest Target (we had just moved to a new city) and was surprised when they couldn't give me directions based on the map because I didn't also print out the turn by turn directions (which I considered a redundant waste of paper).

I think that incident was what made me realize that map reading was a skill that actually needed to be learned.