I can't really tell just from photos, but that scratching looks pretty trivial. It comes from riding with rocks stuck in the brake pads.
True enough but there are other things that will cause this kind of wear.
Pads, themselves, when left to suffer the ravages of time can, and darn well will, become very hard. I learned this the hard way, a few years back. The pads were so hard that they started scratching up a set of near NOS rims immediately. I filed the pads, hoping to remove the hardened surface, but to no avail. The pads had expired, as nearly as I could tell.
Anyway, just wanted to add that and, were it me, the rims will still be rolling along underneath me and my bicycle.