It IS easier manually. Technology isn't the savior. A friend of mine came to NYC and rented a car to go someplace in New Jersey. The ****ing GPS unit he brought with him kept giving wrong directions. I told him to chuck it and just use a bloody map. Done. Easier. Accurate.
Same with the underground. Look at a bloody map (including the one on your phone). Find the nearest station to your destination. Buy an underground ticket, get on the train and go. Do you need a computer to hold your bloody hand? Look at the farkin map in the station and figure out within seconds if you need to transfer lines and where. Simple. Done. Accurate.
For Christs sake. Maybe since I live in a city where I use a comprehensive subway system every day, it's just easy and efficient for me. Probably. Tourists don't seem to know how to read platform signs...even though they are OBVIOUS.