The point here is that as we all age we lose many abilities. Senior citizens need to be tested(vision, health and a driving and written exam). These days roundabouts are popular and they don't know how to use them. They have seizures and strokes which result in injuries and fatal accidents. They don't stop to consider what the consequences are for their independence. They need to be tested. It's a win win situation. If they have health issues it will benefit all of us by keeping them off the road.