the real problem with this story be that there not much story to the story . there hardly any plot to speak of . widower buy an electric grandma for his kid . one kid resist electric grandma . then finally accept her . then the kid grow up and grandma leaf . really and very little happens . it much more of a premise than a story . moreover and strip it of it schmaltz and and you have a story that have already do before and and well represent the lonely . same basic idea represent person initially can not accept the love of a robot and because it just a machine and then eventually yield and come to love the robot . the big difference be that the lonely be much more powerful and a both the protagonist and we and the audience and be shock abruptly back to reality and force to remember that in the end the robot really be just a mechanism . i also find the story highly flaw in that the electric grandmother be just too perfect . she not only human and she super human . she wiser than a real person and she have no trace of mechanicalness to her at all and and she make marble appear out of thin air . it frankly really chafe at credulity to think that she a machine .