My family never had a fallout shelter. And I'll be forthcoming, growing up in the 70's and 80's and being the neurotic person that I am/was then I had often and irrationally so had nightmares about oncoming nuclear war. Often worrying before falling asleep that I wake up in the middle of the night by the bombing of Boston or even worrying about not waking up at all due to a near or direct hit on my hometown.
So with that context, I'd probably would have had a more secure feeling childhood if my family had a fallout shelter.
And now, though I don't expect any nuclear war anytime soon, all of my home buying fantasies include some kind of secret room or fallout shelter, if only for bragging rights. Hey! Look at my cool video gaming room! It's hidden in this panic room/fallout shelter behind a bookcase....