If the bitcoin bill is passed and becomes El Salvador's legal tender, it will be a great progress in the cryptocurrency and bitcoin industry.
Starting from El Salvador, it gradually influences other countries and finally the whole world. This is an important part of social and human development.
How will hey address the issue of people not having access to bitcoin though, I am sure that not everyone have a phone or electronic device in their country and probably they have a really big population that are below or in the poverty line. It's important but the problem is if they take it too hasty, they will probably experience the effects which are opposite of what they are trying to do.