Unfortunately, Bitcoin is a very inconvenient coin for payments due to the long time it takes to confirm a transaction. If an analogue of the system as it was implemented in El Salvador is implemented there, then I don’t see the point. It’s probably easier to make a crypto exchange and crypto debit cards, and tax these operations.
Unless we start using LN, we will always have to face the delay and cost issues which is a real challenge. Being a Bitcoin user of more than 10 years, I wouldn't honestly prefer bitcoin payment over a debit card. Simply because a debit card payment is cheaper and faster.
However, it is always beneficial to have a favorable legal framework. It usually paves the way to bring in innovative solutions to the table.