Hi chorvath,
Unfortunately, even folks on bicycles think they're supposed to ride on sidewalks. Unless you're younger than 18, you shouldn't ride on the sidewalk. You are considered a "vehicle," and are to ride on the street and obey the same traffic laws as any other vehicle (e.g. stop at stop signs, signal turns, etc.). I always considered Huber Ridge a safe enough neighborhood to allow my son to ride on the street, with caution and a helmet, when he was still in elementary school. Of course, Dempsey was off limits, and I don't even ride on Westerville Road!
Lori