What does it mean for bitcoin to be legal tender in El Salvador?
Does it mean all shops are forced to accept bitcoin or shops can accept bitcoin only if they want to? Logically, it doesn't make sense for it to be the first option because not all shops will have the infrastructure to (e.g. a small convenience store or grocery shop). If it is the second option, then I doubt many shops will opt for it.
Or does it mean products in El Salador are priced in satoshis?
I believe that it is a little wrong to say that in El Salvador, for the first time, bitcoin was recognized by the state as legal tender. Cryptocurrency becomes legal tender on the territory of a particular state when a law or other equivalent regulation is adopted stating that this cryptocurrency or cryptocurrency as a whole is officially recognized as a means of payment and the procedure and conditions for its circulation in the territory of the state are established. In other words, cryptocurrency is being legalized on the territory of this state. At the same time, the cryptocurrency will go along with the national currency, but it is not mandatory for acceptance by all individuals, institutions and organizations.
In the case of El Salvador, for the first time, bitcoin became the national currency, that is, in addition to the fact that it became an official means of payment, like the national currency, it is mandatory for acceptance and settlement on the territory of this state.