Hi Dub,
Human nature is the answer.
Do you remember the movie They shoot horses don't they, is was long time ago.
If we see an animal suffering we will put it out of their misery.
But a human, no easy way out for them. They will be with drips and machines keeping them alive to suffer as long as they can, even though they are suffering and their time is near.
cheers,
sypaladin
