I live on an old farm. I'm connected to a neighbour by a track that is narrow, has a steep drop with no barrier and a ford at the bottom. After decent rain, the ford is more like a full-blown river. It is a public footpath but otherwise is only suitable for quads or farm machinery. There's no way of turning around when you're committed. There is not a road or bridleway, there is no public access unless on foot.
At some point, presumably from satellite imagery, Google decided this was a road.
Now google maps regularly directs folk down my private drive and on to the track where they have a terrifying journey or end up having to be towed by a tractor. No amount of 'report a problem' tickets have resolved this and it's been going on for years now.