Jordan from Standard Cognition here (we're building a competing autonomous checkout system). Not having a phone is definitely a big worry. Not all people even

Jordan from Standard Cognition here (we're building a competing autonomous checkout system). Not having a phone is definitely a big worry. Not all people even have a smart phone, even in the US, and of the people that do a lot don't have credit cards. One feature we're working on is a fully anonymous and phone-free checkout process if you don't have a phone. You walk up to a kiosk that tells you what you have and then you just insert your cash.