couple of days, and I will get to my destination quickly, with readily available food, shelter, fuel, and other resources readily available in familiar forms all along the way. I can get in an airplane and fly anywhere in the world with a minimum of effort and time expended. Even more remarkably, I can take out my phone and conduct a live video conference with people in a dozen different countries, and we’ll hardly notice a delay.
The point at which I'm driving is this: most depictions of people walking from place to place in fantasy books are terribly unrealistic. For a start, very rarely do they carry any gear with them, though they often are described as preparing gear, or having gear. But how are they carrying it? Where are the sore shoulders and sweaty backs and the sense of being about the float away when you finally take off your pack at the end of the day? Then they proceed to cover thirty miles in a day, and are promptly ready to get up and do it again the following day.