Up until this point, i agree that tools are only tools. However, as we keep on innovating we might get to a point where education can be done at the hands of robots. I’m not saying this will happen soon, or ever, but I do think it is a possibility. If you come and think about it, education is primarily transfer of knowledge and it is different from innovation. As you mentioned, human emotions play a very important role in the education process, but given enough time, i don’t see why robots wont get to a point where they are able to incorporate at least some level emotions in their education process. Now whether this approach will be effective, i have no clue, all we can do is speculate and hope for the best.