In my own opinion, I rather use bitcoin as an investment and fiat to buy goods. Don't get me wrong but I might give higher amount to store owners than what is actually needed, I mean what if bitcoin price gets higher so it means that the amount of bitcoin I pay before is not the same anymore so it will be a disadvantage to me, maybe I could use other crypto coin such as usdc, usdt, but if bitcoin? I will only use that for investments.