If required to do so, they'd be the first in line demanding an end to "suffering".
I've always thought authority and responsibility should go together. Parachute in claiming authority? Great - it's also now your responsibility. I'm serious about this. Discharge the elderly in their care with a care plan. Charter a flight or medical transport to get them to their house if need be.
The one challenge, folks getting older ALWAYS ACT TOO SLOWLY in getting things sorted - from grab bars and bathroom remodels to care teams and more. The time to find a nurse you like is NOT after hospital discharge when you can't shower yourself. Seriously - move closer to your kids, fix up your house, get some help to come by to help clean and check in on you - because with almost total certainty you will need MORE of this not less as you age.