I thought this was really revealing:
People who've seen what the end of life is like are more likely to support assisted dying than those who haven't. (More in the Sunday Times article but its paywalled)
I can see why after spending 48 hours next to my dad as he died from a terminal disease rank among the worst hours of my life his last words were pretty much " why am I still here". That memory will haunt me until the day I die. I hope my kids don't have to go through the same thing