Should Vertical Freedom be wearing a jet jockey helmet with oxygen mask and a full flying suit with epaulettes?
Only he can answer that question.
For me the problem comes when you rubbish safety items such as flying helmets which serve multiple purposes including hearing protection, critical protection of vision in the event of a window break, protection from glare - some helmets have provision for multiple visors as well as general head protection.
You've got to look at the work you are doing. Maybe if you are flying tourists on a 30 min flight over the Barrier Reef you might not have the same need for a helmet as someone flying all day doing utility work such as sling loads or spraying or someone flying over rugged terrain where if you go down you know more than likely its going to be hard to find a flat spot.
Regarding Robinsons, I heard that some Australian muster pilots wear helmets and which I imagine is probably a good thing.