The point of Libra is to create a consumer small purchase transaction medium with low friction. Businesses using it only care if it has enough Swiss backing so

The point of Libra is to create a consumer small purchase transaction medium with low friction. Businesses using it only care if it has enough Swiss backing so they can get a week’s business or two turned into real currency. It only has to be sound enough for those goals. As it is used more it will get hardened. The killer use is being able to pay overseas contractors without friction. Since there is no privacy, government on the other end will levy instant income tax withholding with glee.