shortstripper... I can see where you re coming from but the argument doesn't really hold water.
If a crash helmet reduces situational awareness that much to possibly cause an accident wouldn't motorcyclists, etc keep falling off? (Yes I know they do anyway but never heard that as an excuse - and I ve heard a few over the last 15 years).
Same argument applies to the increased head movement.
Dirt/Mud/etc is can be as hard to the head as hitting concrete.
What happens if the quad lands on you or you strike it on the way down?
Also cockpits tend to be smaller than cars therefore putting your head closer to the hard bits.
Definately not suggesting it be made compulsory but worth considering..... The case for is to survive uninjured or die from possibly preventable injuries or (for me worse still) end up living but a cabbage..
PW