Can cryptocurrencies be legalized in El Salvador?

Can you explain the complexities and potential challenges involved in legalizing cryptocurrencies in El Salvador? How would such a move impact the country's economy, financial system, and citizens' daily lives? Would it require significant changes to the country's legal framework, and what steps would need to be taken to ensure a smooth transition? Also, what are the potential benefits and drawbacks of making cryptocurrencies legal tender in El Salvador?