Table 3.

Home Tasks – Cons of Robot.

Con	Definition	Example Quotes
Damage to Environment	The robot may break something in the older adults’ home (i.e., home itself or items in home).	“I’m thinking because it is a robot, I’m sure that at times it will break things as we break things. We drop dishes and we break them…”
		“I would think one of the cons would be, especially using a PR2… I guess it would have sensors to keep it from rolling over something… it may roll over and damage something…”
Dependency	The older adults would rather do task themselves or avoid over-relying on the robot.	“Well, con. If it makes you dependent.”
		“It’s actually probably good for us to do some of these things physically to keep, to keep moving”
Mental model	The older adults perception of the robots capabilities is limited (i.e., assume the robot is not capable of doing something).	“I keep thinking of it in terms of how it could help prepare my food but I don’t know whether robots could cook.”
		“I can see that if it does laundry, it needs to be able to sort by color. I can see that that would be a con and it couldn’t do it.”
Reliability of System	The robot either malfunctions or makes mistakes, therefore not performing the task correctly.	“You tell him to bring glasses, he brings you a pair of shoes.”
		“And also if there is a malfunction on this robot. Some warning that let you know that something is wrong – a light or something…”
Storage and Space Limitations	The older adult has concerns about the robots size and/or storing it.	“Storage issues…” “[It] takes some space.” “Well, I can’t imagine having something big that we’d been shown that would help me”