Hi, Aneeda!
You don't think we should prepare for a nuclear conflict? Is that because we're too old to bother/gonna die soon anyway, or because nuclear war isn't a possibility?
It's a good idea to be prepared for extended black-outs, natural disasters, and horrible accidents and such, but I'm too spent already to trudge through an apocalyptic world looking for sustenance and hiding from hungry people.
Some people will survive a nuclear war provided it ends before survival is impossible. They'll be insect-eating monkey people, but the nearly dead world will be their oyster.