Your question is very sensitive and at the same time makes no sense to me.

So here goes, I ask you again "can gold work without fiat money". What do you say, after I asked that.......! Think about it.

I don't think why people ask something about Bitcoin and unprofessional fiat, don't they think Bitcoin was created to make it easier for people to make super fast online transactions, without carrying fiat money in one suitcase and anywhere you can make transactions, based on the exchange of fiat money.

OP Of course if you think so sure you are embarrassed to ask like that, fiat is used all over the world with different names and fiat value in every country, while Bitcoin is created under one name and limited supply is used by all countries, of course Bitcoin cannot operate / function in exchange and trade without fiat, and also this can happen to other things, such as food, drinks, vehicles etc., can't function without fiat, that's weird.