WHY do cyclists have to shout at all?

All bicycles have to be sold with bells but all cyclists take them off! Why? Is is weak or something to have a bell. If I am walking down the Scuff Road near Hebden and I heard a bell behind me I would know exactly what was coming and keep to the verge at the side of the road where I was walking. Q.E.D.

Peter Hodge

Hebden,