No, that fact means that other countries will accept Bitcoin because they have been looking at El Salvador and this country is doing well. There are also some other countries that successfully implement Bitcoin as payment means. To prove you wrong, I want to give you an example of Louisiana state government. This state in the USA accepts Bitcoin payments.
El Salvador is a first nation makes Bitcoin Legal Tender and practically they have been doing it seriously since June 9th 2021.
El Salvador's law: a meaningful test for Bitcoin is a report from PwC.
There is another country make it after El Salvador, Central Africa Republic about one year later but 3 years after El Salvador, they are the only nation follows this law of Bitcoin Legal Tender at national scale.
https://coinmarketcap.com/legal-tender-countries/We have to guess what are barriers that make other hundred of other countries have yet adopted Bitcoin as Legal tender in 2024.
I remember there's small island in Philippines before which they make a Bitcoin Island where people could use bitcoin to buy goods and services using bitcoin
But don't know what's the current update of this activities they have done since so far I don't read any updates if they fail or not. But we can see by what this island and El Salvador did its really possible to use bitcoin as means of payment so hopefully there's strong adaption will happen and we can see bitcoin to be used for this transaction globally especially for buying on physical merchants.