Found this interesting deck[1] on El Salvador's digital climate while looking for smart phone adoption statistics. It would appear that there are more than enough smart devices to allow for such a transition successfully. Already on Twitter we're seeing crypto-punks there using Bitcoin to pay for their McDonalds, paying something like 0.000002 Bitcoin. I can't help but wonder what the outcome +1 year / + 5 years will…
So, for instance, if your plumber did some work for you and sends you an invoice afterwards then that debt is discharged if you offer to settle it using a 'legal tender'.
However, shopping in a store is usually not the same because payments do not settle an existing debt.
Again, I'm not sure exactly what El Salvador's new law entails.