Those sheep on the left of the track don’t look after themselves, farmers need access. While it maybe legal the recent increase in access with recreational vehicles is likely to push landowners to change this. Many of these tracks are ‘permitted access’ with landowners permission. If they are closed it affects walkers, horse riders and cyclists, none of which cause the level of degradation that a vehicle does.
Having seen firsthand how farmers remove stuck vehicles you really don’t want to be that person.