In some countries like the U.K there are so many security cameras that you get caught on tape at least 300 times. The officials which have access to these tapes might missuse them.

Yes! I think they should. This would make it harder for trolls to just start down-voting any argument here.

If the kid is using them in a good purpose then why not. Electronic items can help children educate themselves.

If you are able to see that the student is being slowed down by the pace of the class then I think it is perfectly OK for them to study separately from the other students. Why should we restrict them to reaching their full capacity.