Stop bicycle riding on sidewalks in urban areas. Bicycles endanger the lives of all pedestrians, especially the elderly, the children and small animals. Bicycles are vehicles and they belong on the road, where they should obey rules of the road. Bicycle riders DO NOT obey ANY rules.
Pedestrians have a right to walk in peace without falling, being scared, being yelled at by cyclists. We demand our human rights.
If the cyclists want to save the planet - they can walk.