I've seen more people riding bikes on pavement than I have on the road, though admittedly I live in a small town so there aren't usually many pedestrians to bump into into. Really this just exacerbates one of the primary issues of bikes, in that they're too slow for motor traffic but too fast for pedestrians so they end up in a shitty middle ground requiring dedicated infrastructure with minimal economic benefits because any transportation method worth a damn requires a full sized street. Ban the bike, embrace elevated walkways, simple as.