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

Ezang's Mr. Conehead Dancing, Take 1 - I Will Try More...
This is a test, hard to balance Mr. ConeHead dancing Take 2 soon :-)

Rb550f's Ez Robot Rover
Here is another of my projects.Will more info. I have changed his head to a clear dome.Blue strip around neck is EL...

Slim6072's My Wall-E
Need to wire the eyes. (BlinkM) Need to add the sonar Need o put the camera on top of his head Need to add my MP3...