I would have the robot monitor the elderly to notify a family member when needed in an emergency situation. Also when a particular person is recognized it can remind the individual to take there medications at a specific time.
Other robots from Synthiam community
Daedalus's Android Robot
Talos 185 cm robot for home control and personal goods transport in supermarkets, inspired by the provided demo video.
Kab's Ogie The Bear In Action
Ogie the talking bear with EZ Robot: HD servos for eyes/mouth/head, speech recognition, lip-sync, personality, and...
Ezang's The Watching - Talking Eye That I 3D Printed :-) Two...
Talking, watching Eye sees and speaks-he watches you, so be cool.
