You know, I also thought it was pretty simple to navigate around WDW. My dad drove up from Pompano Beach the day after Thanksgiving to spend some time with us. I told him we were at BWV, an Epcot area resort. He has driven to WDW many times, but mostly to POR (DxL). I even gave him the instructions from the airport to BWV. I figured that yes, he would be coming from the south vs the north but he would have a general idea. Nope...didn't happen. He ended up in the Epcot parking lot..three times!!! He said that if he saw rt. 4 one more time he was going back to Pompano Beach. Someone finally told him to head to MGM/Studios and we would be right there.
They used to give you a terrific road map at check-in but evidently they have stopped doing that. I couldn't find one in order to talk Dad in on our cell-phones.