As in, that they won't run away when they see them or that they will all happily use them? If you mean the latter, then it's just false. Also, why do you assume that such product would need to be used worldwide all of a sudden? Having something for the local market would be sufficient to call it a success in this instance. There's an ICC judge who could tell you a thing or two about having a whole digital life on the hook of services from one country, so reducing this dependency is a clear benefit.