Jay in the Mojave wrote:
the Morse Code should have been dropped when they invented the
telephone

If that had been the case, Klaatu would not have been able to activate
Gort using a flashlight in THE DAY THE EARTH STOOD STILL (1951).

Additionally, Jack Ryan would not have been able to communicate with
Captain Ramius over the periscope in THE HUNT FOR RED OCTOBER (1991).

Morse Code is still valuable even today. It's training and requirement
should not be abandoned.