PSA: Wear a bike helmet when biking. It doesn't say if he was wearing one, but it doesn't sound like it. I'd probably be dead or in a coma today if I hadn't been wearing one when I crashed.
Same here. My crash was hard enough it cracked the helmet I was wearing and knocked me unconscious as it was. If I'd been going sans helmet, I doubt I'd be here writing this message now. :-(
Doctors are wary of operating on the elderly under the best conditions.
Though the importance of your PSA still stands.