Do you have any?
Supposing the large communication monopolies decided you weren't allowed to use them tomorrow.
Then, for example, Israel invaded New York. Oh, wait…
Anyway, you get the idea. Are you in the habit of listening in and finding channels to communicate or find out stuff on that are NOT controlled centrally?
CB
SSB
SW
UHF
VHF
whatever?
Do you know how to build a directional antenna (for any particular frequency) so you can focus your "ears" where you want them to hear?
I got tired of just plain ol' local radio stations a long time ago. I wanted to hear some cool, far-off stations. (I was far from a major city.) I slung a piece of wire out the window and clear across my entire roof.
Suddenly, I had Made Radio Great Again!
Imagine being able to hear people say stuff that was not filtered, because, literally, no one has the money to blanked the entire world with frequency-jamming of all frequencies.
Start looking into it. You may find that it is addictive. Why not get a telegraph key and start learning morse code?
BTW, if you want to remain relatively anonymous in telegraph, get the two-sided key that does "dits" on one side and "dahs" on the other. It leaves you with no "fist" which is your more code "accent" recognizable by other users.
Shoot, you all just learned a whole bale of information you never heard before, didn't you? Use your non-writing hand so you can write what you hear with the other.
If you want to have the option of automatic or manual key, then do auto with one hand and manual with the other. It is sort of like a VPN that you can turn off with two different styles of telegraph keys.
Morse isn't used much anymore, but it is out there. My question to you is, "Can you communicate if the cellular networks and phone lines go down?"