El Salvador's government should've introduced some kind of restrictions or requirements that would force people to continue using the wallet just to claim the "signup bonus" at the end. Giving away the bonus all in one go, is a terrible idea in my opinion. As I've said before, El Salvador went too soon by adopting Bitcoin as legal tender. Without a proper infrastructure for digital payments, you cannot expect people to adopt Bitcoin in-mass. The country needs to provide some discounts or additional bonuses when paying with Bitcoin in order to encourage its use within the region.
It's only been a few years since the law of making Bitcoin legal tender was approved, so I'd say we should give Bitcoin more time until it matures in El Salvador. With another country joining the game (Central African Republic), we are slowly heading towards "hyperbitcoinization". Just my thoughts
Even when they rush about it, there are stores accepting BTC. Its just that it can't sustain because right after they year they tried adopting, a bear market comes in. Naturally, few people can't afford to maintain its BTC activity because the country is populated by poor people.
The rest that may have hold their BTC may find themselves lucky when prices go up. They may only be few. The one that the country may have to focus I guess is the BTC city they were building which the companies can pay employees in BTC.