Yes, I would rather own some Monero to buy my groceries for the week instead of cash, but that's not possible and probably never will be.
But how would one just spend Monero without holding or trading something for it first? 🤔
Monero is actually much less secure than Bitcoin on multiple levels.
I can't buy groceries with Bitcoin directly anywhere around me either so what is the difference? You act as if everyone is using and accepting Bitcoin when they're not. Most people still don't know or care about Bitcoin.
If you're holding some fiat right now (and I bet you are) then it is quite hilarious to nitpick about Moneros security.
There is a ~$3 billion bounty for you to break it's security. If it's so weak, then go get it! What are you waiting for? All for you!
The differences lies in security and assurances.
I don't want to hold something that's less secure for most of my wealth.
I could think of having some privacy shitcoin or fiat for my weekly groceries, but only fiat is accepted atm.