I think this project has so many great use cases, I look forward to using it in real life! I know it will probably be years before it’s wide spread, but making identity digital is a long time overdue.
Driving without a paper ID that I can lose, taking a plane without carrying around a passport, sending a legal copy of my ID to another country — that I now have to wait to receive back (don’t mind the fees and 3 months of waiting… for an ITIN number), and so forth.. a resident in another country knows! :)
This is also great for other use cases like — asking all participants in a conference if they want to share their email or address to receive a notification or gift, proximity + selfkey would make it a breeze. I can go on and on. :)