Medicine shed paternalism decades ago.
Yes he has a brain. They give him the options and ultimately he chooses which one to go for. How can they choose for him.
Sadly I don't think they know either.
Point in case is spike though he doesn't give a monkeys about suing anyone and its never crossed his mind, it was th oncologist who brought up the whole liability issue. He just wants the information to make an informed decision but they aren't giving him that information.
In all fairness the whole situation is a mess and he's really stressing and worrying now. I've told him to complain and ask for another opinion/consultant but hes being stubborn now and saying whats the point.
I know he will die i have accepted that but i would prefer he prolonged his life hes only 66, i disowned my mother 20 years ago because shes a psycho bitch i would prefer to keep my father around as long as possible but he cant make any choices if they dont give him the information.