Generally CW mode (morse) can be transmitted farther on less power than most other modes, and can be sent and recieved without sophisticated electronics (build your own QRP rig for like $10).

But yeah, there's not a lot of utility, even in rare or hypothetical emergencies. Many other things one could focus on.

In apocalypse you'll have a lot of down time to learn Morse.

Interesting. Without grocery stores (et. all) I think most of us will have far less free time.

listen to long distance news updates and survival tips for you and your loved ones through your wind-up AM radio in morse during nuclear winter.