Who says we haven't, I have buried nearly all my family.
I watched them live and die... their life (which they fought for) was worth existing.
A lot of people are only thinking of their own feelings of upset at things not the patient life. Lots of things aren't nice to think about, remember, watch, care for but it doesn't mean death is better for the PATIENT. Its like how it can be horrific to watch things like childbirth, a painful thing but in it you just focused on get through it.
Look at people on this thread saying stupid abelist shit like there is 'I saw my grandma theres no dignity, when I'm old and incontinent shoot me' so lets kill every incontinent person?
Someone with a stoma etc... should just die, they must want to right because someone on mumsnet would feel so embarrassed by poo they thing they would want to die. Maybe everyone with IBS, UC or crones etc... its painful (sometimes agonizing) lifelong condition often with no magic cure and it can cause incontinence so not worth living.
What about those with learning difficulties, severe autism, brain damage that have incontinence and also can't talk or remember things... should they die?
Lots of the shit that people are applying is THEIR feelings about it as not the patient. As a disabled person (with brain damage and bladder damage btw) who has been through a near death (they prepped my family and said goodbyes) agonizing acute medical situation I'm not embarrassed from what happened and don't want to die, I want to LIVE, I wanted to live during it and now even if it hurts at times.
Very few people outside of those dealing with depression actually WANT to just die.