>>1982280the ones where I am are much wider than a standard sidewalk , but I take your point.
I've never been hassled by a cop or a pedestrian on a sidewalk, it's not something the average person is aware of and if anything they think bikes belong there. back in the 00s, one of the messengers here had a cop berate him for NOT being on the sidewalk.
I use them when it makes sense to, but I always yield to peds and match their speed when they're around, which is not often because nobody walks in the US anyway lol