There's really nowhere to use bitcoin as of today (I have owned bitcoin for 5 months, and still haven't had any real world use). And even if I find someone accepting bitcoin, it's pretty useless because of fees?
Because of this, I do not consider bitcoin a currency, but rather an alternative for gold/saving, with some advantages.
I agree today to use bitcoin for daily expenses is not very profitable and not rational. The price for the commission does not justify these expenses. But to send large amounts to foreigners is another matter.