I assume you are not issued maps. How much does t happen that people make wrong turns?
An excess of self confidence. I am the only one with a map, that is a .gpx track for my garmin edge, but there are also some deviations from time to time. They didn't go the wrong way, they just went on by where we were turning off for a bit, and then kept going on their own for over half an hour without stopping to figure it out.
Ah, I think I see this place on your GPS track.