It was a cynical comedy that was depicted serious problem of an aging society and care for them.
A nursery experiment by robots was done in the name of Ministry of Health and Welfare. They said that pushing to nurse them was just exhausting time of youger people, so the robots would solve all of them. Recently I watched a TV program. It showed the possibility of AI would serve as someone to talk to them. That's why I couldn't laugh over it as just a fiction.
Of coure, the thoughtfulness is a vital to care them. If you would take for own parents and elderly parter, I don't think all of them have love with the care completely. That's just an another thing.
I felt a prototype robot acted like Tachikoma from Ghost in the Shell. Just it had one of parts like a brain, so was it Otomo's design type?
It seemed to be influenced by Kubrick, Ghost in the Shell and other works about robots. But it was convincing as much as it won them!