Mass-market use cases
A small but important observation, this: we tend to think about tech use cases in terms of our own experience, but that isn't necessarily the mass-market experience. In particular, the globe-trotting, internationalist experience of many people in tech creates problems and concerns that are not necessarily universal. Most people do not fly every month, and most people do not make many international calls (indeed, a lot of people do not even know anyone in another country). This data from Ofcom in the UK gives a little perspective.
