I was involved in palliative care for almost 30 years. I nursed my own dh through cancer until his death when I was 26. I've loved, breathed, eaten absolutely slept death my whole life. The thing that changed was that, following Shipman, the doses of palliative care drugs were dramatically decreased. Piddling doses of morphine for cancer patients. Inadequate doses of drugs for terminal agitation. Doses restricted in case they led to the patient's death through respiratory depression.
The second thing. Doctors not wanting to be held responsible for anyone's death. Even a 90 odd year old. All the stops pulled out to force keep them alive. Peg tubes, antibiotics, hospital admissions....the lot. I'm religious, but I believe that God does have a way of stopping people's suffering. Pneumonia used to be known as The Old Man's Friend. We now vaccinate against it and other chest infections are treated with repeated doses of antibiotics. Not wanting to eat and drink are a natural way of the body winding down. We now treat with subcut or IV fluids, dietary replacement fluids given via tube into the stomach or supplement drinks thickened with substances for those who struggle to swallow ordinary fluids lest they inhale them. There are ways of postponing or preventing death, sometimes for months, even years. Patient is given no choice. The doctor, anxious to avoid any accusations, ensures they don't know they can refuse these interventions. Add to this a public who don't encounter death and who will do anything to avoid those feelings of grief means that people no longer die a natural death with good palliative care.
I quit nursing after the particularly harrowing death of a MS patient which was totally mismanaged and over which I had no power over thanks to a cowardly and avoidant GP and a wrongly promoted deputy manager who hadn't a clue about palliative care and who regarded every death as a disaster. I have an advance directive in place.
I can understand why people want assisted dying. I don't begrudge people a comfortable and pain free death. I'm fully aware that my religious views shouldn't impact upon others. I was a humane nurse and I always strived hard to treat pain and other terminal symptoms. I feel bad that we're at where we're at. I don't want to see the disabled or depressed pressurised to die either.