Creating a marked path can increase liabilities. It implies that the path is safe. When someone falls and is hurt, the landowner doesnt want to hear that the "designated pathway" was unsafe, that the totally innocent member of the public was literally sent down the garden path to an injury. So landowners will ignore many paths, adopting an "enter at your own risk" approach. One increasing area is accessibility levels. If a landowner installs a gate or other structure on a path, does that structure have to be wheelchair accessible? Can a landowner install a gate designed to disuade bicycles?