I ride on the sidewalk when I'm downtown. If you look at this picture you'll see that the parking spaces are angled so a car has to park nose in. There's poor visibility backing out and a bike is hard to see. I know because when I drove a car I had difficulty seeing oncoming cars, motorcycles, and bicycles. It's even worse when you have a van or suv parked next to you. So to avoid an accident I ride on the sidewalk when I'm downtown. During festivals and the Farmers Market I walk my bike.