Most Americans are used to turning off the cell phones in flight, and calling over cell networks usually doesn’t work in the air anyway. But several airlines around the world do allow it, and provide it as a service. And for years planes had Airfones that allowed air-to-ground calling for a fee. There’s very little conflict between passengers when this is allowed.
Now Europe is preparing for 5G service on planes that would make it possible for airlines to permit use of phones in the air the way they’re used anywhere else.