I do, but I don't see how those methods are better than a chip and pin. Waiting in line at a checkout or getting on a bus behind somebody hopelessly futzing with their phone to mess with the app is the new waiting for someone to write a check. The eye thing is dystopian, but it'll be fast.
Fumbling with your phone sounds like a silly statement but so did fumbling with your wallet.
I don't think people want to look away from their phones to do anything, least of all pass a retina scan. You don't even need to swipe away from TikTok to use Apple Pay.
Your wallet and phone are lost/stolen. I wish the ATM would take my bank username and password but this is a close second in that situation. Wouldn't use it otherwise.
Perhaps selling this collected data to third parties? I'd imagine optometrists would want it to push mail in fliers.