We should also not forget that El Salvador is a poor country, their president bought a risky investment near the all time high and he used taxpayers money to buy this risky investment. What would this make him appear in front of his constituents presently that bitcoin has dumped?
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It is a question of enlightenment: if El Salvador's government wants to have high enough support despite low rates of bitcoin it should educate Salvadorians more and give them enough economical and crypto information. If Salvadorians will understand that it is not a problem that long term investments went down in short prospective they will still support their government despite low rates of bitcoin. If not... well, we all can guess what can be then.
As South American, my opinion is that the topic of education is a vicious circle when comes to countries with social problems. Education in general is an important weapon against poverty and manipulation, ignorance itself is something taken advantage of to manipulate the masses, we all know that.
One can call El Salvador a "poor" country and part of this problem is the lack of education and culture there are nations that have such a strong culture about work and education that allows its population to be reborn from the ashes, Japan is a good example.
The vicious circle starts when there is poverty that does not allow to get education and therefore there is a perpetuation of poverty. The president of Salvador (as any good president would) is trying to break this circle by attacking the poverty but he should also attack the ignorance at the same time, if possible, because we would encounter himself swimming against the stream otherwise. The vicious circles are quite hard to break at a personal level, ever harder at a nationwide level.
Education, and without it it is not possible to eliminate poverty, has never come from below, it is always declared and imposed from above, everything else, no matter how well it is organized, plays the role of enlightenment, and in any case, the "declaration on universal education" will include certain forms of propaganda, which is just interested in in maintaining the status quo, but not in the fight against poverty.
Even the President of El Salvador, who initiated the legalization of bitcoin in this situation, which you describe in the field of education, is also a kind of awareness-raising activity, which, however, pushes people who have the opportunity to own a digital asset to engage in self-education, which, it seems to me, always benefits both the person himself and society as a whole.
So speaking about the benefits of the act of legalization of bitcoin for the growth of its popularity, it should be borne in mind that it also benefits society as a whole, as it helps at least a little, but to improve the literacy of the population, which in the future may become a trigger in society's need for change.