Well, I KNEW that old line about helmets "causing serious neck and back injury" was goin' to be next on your agenda here!
Nope! No surprise THERE amigo!!! And so, lemme guess here, your philosophy is that you'd rather just be "brain dead" and thus basically have the plug pulled IF heaven forbid your choice was THAT or being paraplegic then, RIGHT?!
Well, I'm kind'a thinkin' that the REST of your family might think STILL havin' your "behind" around the house, even IF that "behind" ends up in a wheelchair afterward, would be a PREFERABLE to the alternative! AND besides, I personally know of a couple of paraplegics who I think are STILL "worth" havin' around!!!
(so...argue against THAT, my friend!!!!)