I’ve just managed to calm down my 4 (almost 5) year old DS, who was very upset screaming “I don’t want to die”! He had been looking at one of those You Choose books with DH, and the picture showed dinosaur bones and a coffin under the ground. I think he and DH were talking about the picture and the idea that death would also be coming for him suddenly struck! He was very upset, asking questions like why do people have to die, when I die will I be on my own, will I be nothing, when I die will the dinosaurs come back (!) and will we die at the same time!
I remember DD going through similar at age 4, when it seemed to suddenly hit her, and she tearfully asked if she would die one day.
I also remember being paralysed with fear of death when I was a very small child.
Have you/your DC gone through similar at a similar age? Just interested really. Also any tips on how to handle it! With DS I was honest and factual. We’re atheists but I told him what some people believe happens after we die (heaven/reincarnation/nothingness). Then I sang him some songs and distracted him!