> But before we do that, we should think for a moment about what streetnames are for. They are for helping people navigate the city.

People name streets (and other things) for other reasons too, often for internal or local reference. This perspective reduces the meaning of naming to a single focus, like saying we name dogs only to allow our guests to refer to them as needed when visiting our homes. We name things for many reasons, and those reasons are more about endearment and culture building at the local level. I recommend Seeing Like a State by James Scott for more discussion, including about street names, exploring this perspective.