[quote=@RumikoOhara]
Staying in a city when the Dead walk not so safe even if you can find a safe place because the access to food and water won't last forever
[/quote]

I mean, that is kind of the [i]point[/i] of a zombie apocalypse. Sure, our characters might think of finding a safe place, but the thrill of a zombie apocalypse is the whole "struggling to survive in a city with dead things that consider you a bag of potato chips and want to tear right in to you."