My dad was in the WWII Pacific theater, Navy. I never once heard him mention anything about the war. When I was about 30, my mom stated he had had malaria during the war. That’s the extent of my knowledge of his service.
My great uncle only started talking about what he saw over the Pacific when he was near 90. And he only spoke of it two male relatives who were also veterans.
The wwii guys during the war and after we’re extremely reverent of the guys who died. They came home more or less in one piece they shut up and got on with life. It sometimes seemed to me that they regarded talking of their experiences over the graves of the dead as a kind of stolen valor. “Some gave all” and that was the end of it for them.