I don't think it's a natural urban/rural division. I suspect that that division is more an artifice of capitalism. These new services want to grow, so they targ

I don't think it's a natural urban/rural division. I suspect that that division is more an artifice of capitalism. These new services want to grow, so they target places with the most potential customers. If the pitch to the municipality is that they can take the cost of coin collection and meter maintenance out of the budget entirely, and switch the enforcement from a human walking around, checking meters and wiring tickets to a car that drives past with license plate readers and a sass subscription, then it will come for anywhere with meters, and may eventually come for everywhere, because the original pitch for meters required justifying the expense with projected revenue. And now, if the expense of a few signs and a subscription are low enough, and the license readers are already on police cars, then that evaluation changes. Of course, as with all of it, local jobs disappear from the local budget, and that money gets shipped off to Wall Street.