the world is trying to make bitcoin look like a currency, replacing fiat majorly and used as payment everywhere.
The world doesn't make it like a currency, but indeed it is created for a digital currency from the beginning (electronic cash for online payments). Please read the Bitcoin whitepaper for the detail information:
https://bitcoin.org/bitcoin.pdf.
Replacing fiat? Who said? Even on Bitcoin WP, I don't see Satoshi's statement saying "replacing fiats".
I don't think it will be fully replacing fiat because Bitcoin still has a weakness that can't cover people's needs around the world. But surely it will support and complete the current world's financial system with its advantages.
if there is a Bitcoin ATM card, and you want to use it to pay bills such as an hotel booking
Why do we need Bitcoin ATM card? If there is a more effective way than using ATM card, people surely don't really need ATM card. Personally, I prefer to send Bitcoin from my wallet than using a service from a third party. Remember that Satoshi created Bitcoin in order to avoid the third party. No third party service will make
faster, easier, cheaper, and more efficient transactions.
*In my view, using services of the third party just make
a longer process in the transaction.
Bitcoin whitepaper:
https://bitcoin.org/bitcoin.pdf