If someone accesses their property by going through yours and you do nothing about it over time it becomes a defendable in court easement for them...there was that scenario going on here on this property back in the 70’s with neighbors putting a driveway to their house around the head of a hollow through this property. It actually ended up cutting out over 5 acres of land between the driveway and the property border...luckily my uncle was able to remedy that back in the 80’s with a backhoe. Neighbors now have a nice driveway through the hollow on their side of the fence. Luckily they didn’t fight it because it could have gone another way...