Some further advantages of forefoot walking: it is much quieter; it is easier to precisely place your feet (e.g. 10 people can all walk in the same footprints and hide their numbers); you can very quickly and easily transition between walk and run or other types of motions (jumping, climbing, backing up, scooting sideways, crouching, diving to the floor, ...); it is more stable / easier to recover from sudden forces if e.g. the ground gives way or someone shoves you; your torso bounces around a lot less, which can make carrying certain kinds of loads or wearing some types of clothing easier, and also really helps if you are trying to aim a video camera while walking.