Just one answer to many claiming bitcoin is used in real stores or online - could you upload a bill when you last time paid with bitcoin?
My point is - people are not ready will never be ready to use bitcoin for anything else than wealth storage because of it is to expensive and getting more and more expensive - it is psychological problem
Why should i jump hoops and upload any bill for your amusement? So that people could track me and my purchaces? Technically most of the purchases are handled in fiat money anyway. With wirex you have to swap btc/xrp or what ever cypto to eur/usd first with your app and then use it with your card.
And bitbay converts it to the fiat for merchant (at least i think that's the process) but who cares, i bought a laptop with it without touching fiat. And people are constantly using it, why do you need proof exactly? Hell. I just changed btc to eur and ordered beer with my wirex and i am oblicated to give proof now?