I think it will not be possible, because there are still many poor people who can not afford to buy mobile phones. So what about the poor who can not use technology? Until now there are still many countries that prohibit the use of bitcoin. How could the whole country follow sweden? Perhaps cash will be lost if the state facilitates and socializes the technology in lieu of cash. The state must spend a lot of money for the budget, this will affect the economy of the country. Need to think over and over again for this, there are still many more important issues to be solved.