As far as I know, El Salvador will officially introduce bitcoin as a national currency only from next month. Then, in practice, we'll see what happens. This is a very interesting experiment and I didn’t even expect this to happen. However, the payment for transactions on the bitcoin network is also large and its bandwidth is too small, which will delay transactions in time. Perhaps one should even have used a different, faster and cheaper cryptocurrency for transactions than Bitcoin. However, the best option is always national money, which can be digitized in the future. Perhaps, bitcoin will be for El Salvador as a transitional period for the launch of national money.