By paying with card the merchant pays the fee while paying with BTC we pay the fees. I think that's the main adoption problem in buying a coffee with my bitcoin
oh, c'mon! Do you really think 5 cents makes a big difference? I don't think so.
If we all want Bitcoin to be accepted more widely we should be ready to sacrifice a bit at least IMO and 5 cents is not a big sacrifice.
If you would drink at least three coffee a day (at least) like then we're talking about 15 cents that go in fees every day (just for coffee!). I want BTC to be accepted but if we start using it on a daily basis right now we should pay a lot of fees.