💜🫡 I think the familiarity part is crucial. Another option could be a hardware wallet that’s simply designed as a small laptop computer, or a tablet with a touch screen. The device itself should not be capable of direct internet connection. It should have a camera, and a companion mobile app for monitoring balances and broadcasting any transactions. All communication between the device and the companion app should take place via QR codes scanned with each device’s camera. These are all increasingly familiar UI elements in today’s world, and something most people are either already familiar with or could learn easily.