Why would many children like myself in the 1950s be shown plans on how to build a UFO?

My thought now about this as an elder is that they were worried that it was the end of the human race from a nuclear conflagration and they wanted some of us to survive maybe. This is the only reason why thousands of us likely had this vision of plans to build a UFO on a Green CRT Screen in the 1950s in the first place.

This is my thought on the subject at present. Because I didn't write "Flight of the Navigator" someone else did and yet my experiences were in this movie too.