We are working on Golden Currency project (
https://goldencurrency.money ), where we issue money that is available both in crypto and in cash form. We find the possibility to use crypto money in cash form as one of advantages. We expect that almost everybody anyway uses cash and in such a case the lack of such opportunity limits the potential use of currency. That's why we started the poll to prove it. Would be glad for your votes and comments regarding your view on such an option.
I usually still use cash to buy food from restaurants, yes mostly only for buy food. I bought many books at online shop and I pay it by bank transfer so I usually do both, online transaction and offline transaction. The possibility to use crypto money in cash form is not so practical, I prefer like to use cryptocurrency directly. I hope that there are more restaurants that accept bitcoin in the future.