Do your roads appear on any government maps? I believe the mapping agency for road is called…shucks I forget. They’re sometimes ahead or behind Google maps.
If it is a private road on private property, I don't care if it is on a gov't map or not. It should not be listed as a route on any publicly available map service. In fact, it should be required to be explicitly labeled as private property "violaters will be prosecuted" type of thing.
Where I live in semi-rural Maine, probably 90+% of the houses are on private roads on private land. If they weren't listed as routes in map services nobody would be able to find us.