I tend to stay away from saying “talking to people around the world” afraid of that “Good buddy” response as an explanation to satisfy the question ….
It’s a license to experiment with electronics, to transmit legally, to get legal access to satellite systems and even to contact the space station (If they have the time).
It’s an opportunity to mix radio, computers and the Internet.
Yes it can be used too in times of need where all other infrastructures have failed … even the Internet.
It’s an exciting field of science for those that were inpired by donald duck and mad scientists with control panels and big switches.
It’s a knowledge of morse code that alludes all but those that have the will to learn it, the fascination of a language that bridges time …..