For quite awhile, she could not stand, walk, go to the bathroom herself, etc. Then she could not eat without assistance or barely speak. She was not "living" - she was waiting to die.
She was a nurse & told me years ago she feared being in such condition & wanted no life-saving measures. She put it in writing. I have no doubt she would have chose assisted suicide if she had the opportunity.
Just because modern medicine can keep people alive long after they are ready to be called home does not mean we should.
Keeping people alive simply because we can is not mercy, it is cruelty.
Do you believe God is in ultimate control of His created Universe? How do you measure 'ready to be called home'? Who calls them home? Are humans so powerful now that they can counter the 'call'? ... Really?