For now, each time am willing to spend my bitcoin, then i will have to exchange it to fiat as the use of bitcoin in my country is still not fully backup by government and you may hardly see where you can use it in buying and selling, despite the increasing rate of its adoption, majority exchange it for fiat.
The day to accept BTC itself didn't come fully in many places, but it will, imo.
As for now, we can still just hodl BTC in question and get it turned to fiat, albeit only if we really need it or to fix what we did for a good chunk of time: watching our BTC gain value.