I would argue that Morse code is not only alive and well in the amateur radio hobby but actively being adopted by younger people both in and out of the hobby. I just got a holiday card from a college friend whose 6 year old has taken an interest in Morse code despite knowing nothing about the existence of amateur radio.
Ok? Just because there has been a drop in the number of licensees and the exam no longer requires Morse code wouldn't necessarily put Morse on a list of "methods of transferring information we may have lost historically that we don't even recognize".
At least in the US, ham radio is far from a dying hobby and Morse code is actively being learned by people of all ages.
- Gregg shorthand.
- Labanotation (like music scores, but for dance)
- Morse code
- Punched tickets (not for machines, but for train tickets and bus transfers)
- Railroad car chalk markings (where does this car go?)
- Hand signals for railroad yards, cranes, etc.