This isn't healthy. The robot will never provide an adequate amount of companionship required by humans. Even children don't bond with these robotic toys. The fact that elderly people are bonding with the machine is a sign of severe loneliness and not a sign of successfully creating an android companion.

I get the problem they're trying to solve though. Currently there's already a solution in modern society that solves this issue though albeit comes with it's own inconveniences... Dogs. Get these people dogs. If dogs can lead blind people than they can take care of the elderly.