the bikers ride it, it becomes a trail, then the dog walkers walk it and decide its a footpath so block it whenever the mood takes them.
so the bikers clear it and ride it again, but now its getting obvious, so the groups of walkers walk it as well as the dog walkers.
thats the beginning of the end because
then the cheeky horse riders ride it, and like mountain bikers they are happy that its only them using it, so its ok.
now the trail is blatant and if the landowner doesnt block its use totally its not long before the MXrs get to it, soon to be followed by the 4x4s and intensive equestrian use.
then it rains.
nobody can use the trail at all, so over a year the quagmire is quickly covered with holly and brambles and fallen trees so the trail, footpath, bridleway disappears.