In the upcoming iOS 17, there is a feature to tap two phones together to share whichever contact information you choose to. It’s all a manual process though, as I think it should be.
I could see a world where augmented reality glasses could show people’s names floating above their heads, if they opted in. It would be useful for private work meetings and small classes, not so much for walking around in public. Would need fine grained controls over sharing what, to who, when and where.
It’s just a little slimy, it’s still good, it’s still good!