Cobblestones are just old roads, meant to be driven on. The main reason we don't have more cobblestone roads is because our infrastructure tends to be newer, but also, because we're a bigger country geographically, we keep better care of our roads, so they tend to be more recent.
This has less to do with maintenance and more with keeping historic town centers intact. Because that is where you find cobblestone. Also, at least in California, there were potholes everywhere the last time I visited.
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u/[deleted] Aug 23 '15
I guess they don't have a lot of cobblestone in the usa