Quoting ☮ Phuket:" id probably want to die if i had demtntia.. depending on how long and how bad.. whos to say though. ... [snip!] ... whole young life might just want to give up. : ( like someone else said a mental eval. and counseling would probably be good"
I agree with not expanding it to children. Like you said, they haven't grasped what it means to live yet.
As far as dementia patients, though, I could see expanding physician assisted suicide to them. We have a long history of Alzheimer's in my family- my grandmother, her two twin brothers, their father, etc. Watching my grandmother slowly deteriorate and forget her life, her husband, her children, everything- it was so terrible, and not something I would wish on anyone. My mother has already been very explicit about if she gets the disease- she wants to be put in a nursing home and for us not to see her, visit her, anything. She says she doesn't want us to see her like that, and to have to go through what she went through watching her mother disappear before her. My uncle (mom's brother) says that if he gets it, he wants to go hunting and have an "accident" because he would never want to live like that. Why shouldn't they have a right to that choice?
My grandmother had moments of clarity. She was with my mom during one of them. She told her how proud she was of her, and how she had turned out to be a wonderful woman, wife and mother. She told her over and over again how sorry she was to be putting my mother through this disease, and how she wished it could all just be over so her family wouldn't have to suffer anymore.