I understand that someone might feel that crypto will become more tangible with banknotes, but the truth is that cash is slowly disappearing from the society, why would crypto need to go the opposite direction? future is cashless
The cashless society is something being forced on us by big brother government so they can watch every cent you spend. That's why this is a perfect antidote to that, Bitcoin can be passed from person to person without even the need for a blockchain transaction, complete anonymity.
It is absolutely impossible. Not only because of hundreds of technical issues that would arise, but more because of the idea that such modern currency would use such outdated representation. It would be absolutely inefficient and uncontrollable. I would say that this currency should stay in the electronic state, at best - on cards or phone apps.
Read the thread. These are cards with an NFC chip in them. It is not impossible, these things exist.