The argument isn't about whether or not to treat roads, it's about the fact that roads more heavily used by stay-at-home caretakers aren't being salted. Those aren't just private estate roads, they are the public roads between residential areas, the roads that don't necessarily all go through business centers. This issue stretches beyond just the "gritting routes" it's also a public transportation issue that travel between residential neighborhoods is a lot more difficult, expensive, and poorly executed to manage than travel to business centers.