A very interesting possibility and notament for gift cards. I confess I do not know that I think of tokens erc -20. There have been so many projects that have not succeeded, that the current period that seems to be hardening is perhaps a brake on development.
Concerning gift crats it's a good good news that gives a link between the virtual and the real.
It is through these small changes that the people can project themselves into the crypto and believe in it. I speak well on skeptical people. Thank you for this article