off the top of my head... * An accident between a bike and pedestrian usually results in the pedestrian getting hurt. * Footpath is generally too crowded or too

off the top of my head... * An accident between a bike and pedestrian usually results in the pedestrian getting hurt. * Footpath is generally too crowded or too small to cater for both pedestrian and bike. * Kids walking on the footpath are usually absent minded and not lookout for bikes. * etc In general, it is similar to the reasons why bike and car are not so compatible on the road.