Leaving the trail, track or path that we follow is a bad idea. As much to say that the “hiker makes his way to walk” in hiking, biking, horseback riding and other outdoor activities on land that is, from the point of view of safety, efficiency and ecology counterproductive.
Failure to follow the paths or roads (in single file behind the guide head, if necessary) results in increased soil erosion and damage to fauna and flora, makes walking, cycling or horse should walk normally more distance or more roads complicated (increased fatigue or loss of time) or even potentially dangerous areas (edges of cliffs, rocks badly settled, etc.)
The halt or cut corners, heart rate change also difficult aerobic physical adaptation to running, climbing, descending or walking. Therefore, follow the marked trails is a standard that we must meet both for reasons of safety, rational use of our physical effort, and respect and care for nature.