Do you know if these guys do offer an instant fiat conversion or not? Like when I need to buy stuff exactly on the spot in a joint eh?

This is exactly my struggle as well! Living in the UK., please let me know if you do find a EU-based option!

I've been devoted to using cryptocurrency for the past few years, believing it will grow the way it did.
But while I have money in different types of coin, the moment I intend to use it for my day-to-day purchases -
I am able to. Most stores online, not even mentioning offline ones do not accept those. Banks prohibit incoming
transactions in crypto. Seems like I have a fortune worth of crypto, but no way to spend it. Can someone help me find a
 way to conveniently convert/use my crypto automatically as if it was cash/card?