A majority of lawmakers have approved a proposal from Salvadorian President Nayib Bukele that will allow bitcoin to be used as legal tender in the country alongside the US dollar.
The law states that "all economic agents shall accept bitcoin as a form of payment when it is offered by the purchaser of a good or service." It also says that tax payments can now be made in bitcoin.
CNN
It should be said that Nayib Bukele has authoritarian tendencies, and his populist message resonated with large swaths of the population, due to years of a small oligarchy controlling most of the country's land and wealth.
So he's popular and this measure will be popular just for that, but he's also slowly amassing power and is probably looking to change the constitution so he can stay in power as long as he wants. I have family down there that are worried this is just a measure to make it easy to launder money in El Salvador and turn it into a new tax haven.
That said, this does make sense in a country with really high cell phone adoption rates, and low formal banking access. Apparently there's a beach city that has a lot of foreign surfing tourists that has been operating in Bitcoin for a while.