Should drivers use their horn when behind a bicyclist or horse rider on the side of the roadway?

Using a horn inappropriately can startle bicyclists or horse riders, leading to a loss of control, which poses a significant safety risk. When sharing the road with these vulnerable roadway users, the focus should be on providing a safe distance and a calm driving environment. Instead of using the horn, drivers should reduce their speed and pass carefully, allowing sufficient space for the cyclist or horse rider. This approach promotes safety and respect for all individuals on the road.