skuaLooking to justify putting an elderly person into aged care?
Be sure to define their personhood in ways that excludes all the things that taking them out of their current environment will make much less likely.
That way it'll appear that they'll lose very little.
Focussing on them, not as co-creators in a family and in their neighbourhood & friendship circles, but as consumers of comfort, calmness and routine keeps things simple and the solution obvious.