When it's dark, I can't see. For real. I'm not particularly confident driving a car at night, but one does what one has to do. (I recently had a car passenger gently suggest he take over the driving, after sensing his life was in danger with me at the helm after nightfall.) But you need a heck of a lot more visual input to ride a motorcycle than to drive a car. ONE time I tried to ride my motorcycle after dark. It was frighteningly similar to riding with my eyes completely shut. Where does the road go? No idea. When do I put my feet down? Um, now? No, now! So I am quite confident in saying I would be much safer hitch hiking or sleeping in a ditch by the side of the road than riding after dark. Since I wish to do none of these things, I allow myself plenty of room for error when riding, and plan to arrive at my destination an hour, or, even better, two hours before sunset.
No one really wants to ride at night. The problem of your visibility (other drivers seeing YOU) is compounded many times over. But it would be nice to have the option in a pinch, when hunting down a campsite, for instance, or after a nice dinner. But despite the ophthalmologists and hundreds of dollars on special glasses and contact lenses, the fact remains the same. Cinderella must be in well before sunset, or Cinderella likely becomes one smashed up pumpkin.