A pair of fog lights are a kind of signature for allroad touring enduros. They provide the extra light and safety in the darkness, but also other road users can see the allroad rider much better in a fog and even in a broad daylight.
Good driving headlights are a clear safety issue. Usually the standard allroad motorcycle lights are far from excellent, perhaps due to the reason that generally motorcycles are mostly ridden in urban areas with streetlights and during the daylight hours. Therefore the requirement for illumination was relative low. Now we know better and accessory driving and auxiliary lights are common. Read more here