There is cycling infrastructure, the cyclists just choose to use pedestrian sidewalks. If cyclists infringing on pedestrian pathways isn't enforced, why should robots infringing on pedestrian pathways be enforced?

Is there actual cycling infrastructure, or is it just a painted line on car infrastructure done in a way that only a suicidal person would use it?

My country has great cycling infrastructure. I never see bikes on the sidewalk. There is a direct link between the two.