To be honest, I have never used Bitcoin as a payment method. Most of people who own BTC will not choose to do that too.
Firstly, there are not many places which receive BTC as payment method.
Secondly, fluctuation in BTC price is too large, which makes pricing other items become very hard.
Thirdly, large fluctuation makes large rent-seeking space so that BTC is more like a financial investment products than a currency.
And what makes the large fluctuation? The lack of faith. Why we believe that a paper has value?Because we believe in the country behind the paper.
Then what is behind BTC or other cryptocurrencies? What can make us all believe? Are we believing now? I don't know.