@Badbudgeter , I’ve seen more than enough of late stage dementia,,too, and IMO there’s too much ‘striving to keep alive’ - for what?? I did make clear to staff at my DM’s care home, though, that there should be no such ‘striving’ for her - she was already 89 when she went in - palliative care only - and they agreed, so the issue never arose.
Dh and I have added paragraphs to our Health and Welfare Powers of Attorney, to state that if we should develop dementia, or any other condition where we are both unable to care for ourselves, and speak - with full mental capacity - for ourselves, then we emphatically do not want any life-saving or life-prolonging treatment. We ask for palliative care only.
This is something that anyone can do.
I’m perfectly confident that dds will respect our wishes. However I gather that it’s often the relatives, not the medics, who ‘can’t bear to let mum/dad go’ and insist on treatment when quality of life is very poor or zero, and it would be much kinder (IMO) to let Nature take is course.
Hospital is in any case a terrible place for anyone with dementia, when they can’t understand what is going on or why, can’t remember any instructions, and will endlessly e.g. pull cannulas out.