You really maximize its function, even though you know the price of BTC is very volatile, and are you not sorry about the price changes that are not comparable if one day it changes? however it is your decision, you must have your own consideration
If I prefer fiat for daily payment transactions, for me it is more effective. Whereas I place BTC as a trading commodity and investment tool. But, if one day there are developments and innovations that make transactions using BTC more effective and as easy as using fiat, maybe I will try it, but I'm still doubtful because for me BTC is more appropriate as an investment tool, given the volatile price.