https://www.theguardian.com/business/2021/sep/24/el-salvador-adoption-of-bitcoin-as-legal-tender-is-pure-folly

Cryptocurrencies are a baffling entity but adopting it as legal tender is the strangest, most worrying aspect of all

El Salvador this month became the first country to adopt a cryptocurrency – in this case, bitcoin – as legal tender. I say the first, because others might follow. But they should think twice, because the idea is highly dubious – and likely to be economically dangerous for developing countries in particular.