What most guys really like the zombies and performances disaster is that, besides being fun, sometimes there are things you can learn and practice. "The Walking Dead" is a great show for the guy, he is a great starter for discussion. But how to teach guys how to be a prepper or surviving in a world infested the real, non-zombie?
In addition to firearms and weapons and perhaps some self-defense techniques, it is not much of "The Walking Dead" for the survival of prepper or candidate. In other words, unless there actually be a zombie Apocalypse soon.
The fact of the matter is that most of what we have to prepare for in the case of a disaster, non-zombie is very annoying to deal with TV program. Preparation of a "HFCS" (waste water hits the fan) setting means that preppers and survivalists deal with mundane issues such as water purification and sanitation over crowbar is better to crush a zombie skull.
As with most TV shows, characters: The Walking Dead does not really seem to go to the bathroom or the need to find clean water or treatment of personal hygiene issues.
The interesting thing about surviving a major disaster is like most rudimentary daily struggles are. For example, more people die worldwide from diarrhea caused by unclean drinking water as AIDS or tuberculosis.
Cholera, whose explosive diarrhea symptoms boss can kill people so quickly that morning, they look good and are dead by night. This is much more serious than a zombie invasion.
The other thing you can not really learn about the preparation of The Walking Dead is food storage. Learn to cook and store food in adverse conditions is a major priority for preppers and survivalists, but these things do not seem to take much time or energy for television characters.
So while The Walking Dead is great fun and a very good discussion entry, using it as a way to begin to prepare for a disaster is a bad idea.