The companies have an imperative, since I guess calling it a vested interest would be an understatement, to not let you escape from their clutches.
They can't force you to come inside, and they can't force you to stay, but they can make it so that it's almost impossible to go anywhere where they are not already there. It's creepy and predatory vulpine super stalker behavior, but unless we establish a system of government that puts our desires above theirs there is not much we can do about it other than stay away to the best of our abilities.