Today and 3 times before, I have encountered cyclist, on W.Bayard St., in SF & River Road, 3 to 4 abreast, trying to follow the white line, on the edge of the road. Vehicles getting out of their lanes to miss them. These are adults not kids. SF, Waterloo & Geneva all have bike paths, on highways/main streets, etc. Why aren't they used? I have never seen the bike paths being used, when there is a group of cyclist.