I have been hit by a car and it stung like feck. As for a question of competence, it is not the competence of the cyclist that is the issue it is the ability of other traffic to give the cyclist adiquate space. A lorry that is being overtaken does not necessarily have the ability to give the cyclist enough space. Riding in the secondary position with traffic approaching at 70mph in those circumstances is in my view as a cyclist is too risky, and as a driver is adding an extra slow moving hazzard to the road.So you won't do it but anyone who does is mad?
Or maybe they're just more confident and competent?