While I'd generally agree that when the SHTF, licenses are probably not going to be the most important thing on your mind, if you actually want to LEARN how to use the hardware, you're pretty likely to get in some serious trouble learning how to properly use it before the SHTF. Learning how to use it after the fact isn't going to be nearly as easy as you think. Also, when you are transmitting, you are very easily located, even by amateurs, much less professionals.
Hams really love to help people learn how to do things the right way. Find a local club, and they are more than willing to teach you everything (and more) than you want to know.
“Hams really love to help people learn how to do things the right way.”
That’s all fine and well, but if having a ham license means you give up your 4th amendment rights, then I’m not getting one.