Thanks for the comment @lemouth :)

Agree it is difficult to do everything on computers at the moment. On the other hand, as generations become more reliant on computers, we might use less and less paper as generations goes by. Who know's maybe we will even have a technological replacement for paper one of these days.

Tablets are already become smaller and smaller. I must say I personally still prefer real paper and books instead of reading on a tablet. But will kids feel the same way?

What if we have a pen writing on normal paper but the pen is connected via wi-fi to a school network, and as you write on normal paper, your writings is cloned on digital paper in the school server network. So you still have paper and it is enhanced with tech.

From the Internet connectivity while writing exams, it is fairly easy to set up a network which is in the wider network, but does not have access to the internet. Very similar to what corporates do with a DMZ or (Demilitarized Zone). The benefit of having a digital authentication medium like the public an private keys on the blockchain is that we have even more control on the end user using that key in allowing access to various areas on the network.

BTW Check these Digital Pen Review out