I don't think that's what they're saying.
My granny was compos mentis until the last few hours of her life. She was very clear that her life was a living hell, a living nightmare - those were her exact words to me.
She hated the indignity of what she had to go through to get to the end: being moved by carers, being changed by them, or putting herself through excruciating pain trying to get to a commode. She hated the feeling of her mouth furring as her immune system packed up.
Of course I helped her. I brushed her teeth and tongue and mouth; though even that she found humiliating because she didn't want to be unable to do those things for herself. She insisted on doing it for as long as she could but ultimately couldn't manage it. I waited with her while the carers changed her when she asked me to, so I could see if there was anything we could change to make it less unbearable; again, she desperately didn't want to be helped by them, she wanted to be able to care for herself. I advocated for her with healthcare professionals, to try and obtain pain relief and other medications to relieve some of her suffering.
But she still had to experience it, in spite of being very clear and very vocal that that was not what she wanted. What benefit did that offer, except putting her through weeks of suffering she didn't want and didn't need to experience?