[zoe4883]

It is their life, they will die soon anyway. It may be better to have one good year, than five bad years.

Does your father gets dizzy or does he sometimes loose sense of stability?

Also limit damage from possible fall. Cover sharp corners. Ad rails on both sides.

If he falls, you should know about it. Some smart watch should be able to detect it. Or cameras with motion detection. Monitoring can be probably outsourced to India.

And some neighbour who lives nearby.