Good to hear that Mr. Inglebright was wearing his helmet. Sounds like it certainly prevented him from suffering even more serious head injuries.

Specifically what helmet hinders your peripheral vision? I wear Icon's Alliance SSR Solid which is a full face helmet and it has no impact on my peripheral vision at all. Half and three quarters helmets also do not impact peripheral vision in any manner.

You are absolutely correct that wearing a helmet is no guarantee, just as seat belts are no guarantee. However, a DOT approved Snell tested helmet improves, not only your odds of surviving, but of surviving and keeping all of your mental capabilities. Some motorcycle fatalities are the direct result of not wearing a helmet. There have been none, that I know of, that resulted from wearing a helmet.

You certainly have the right to not wear a helmet. So long as you are willing to pay for your own health care in the event of a traumatic brain injury due to the choice to not wear a helmet.