Do these old people know what is happening? Do they realise they are being fooled into thinking that some animal cares about them, that some real messy organic brain (not some tidy small box of silicon chips) appreciates their pats and their coos?
There is something depressing about this. The cheery assertion by the commentator that these imitators of emotion will some day replace humans I found particularly chilling. I remember reading a book by Asimov as a teenager: I, ROBOT. There had to be a primary law when robots were introduced into society, Asimov said, something about not usurping or harming people.