A lot of people from Vietnam didn’t want to keep any mementos or things from it I’ve learned. I worked with a guy who never spoke of it and would get angry if you asked. Not that people returning from war are treated highly, sadly Vietnam vets got the worst treatment of all from my understanding. Quite sad.
My father in law doesn't talk about it much. My dad is more than happy to talk about his time there. He was on a base most the time though, not in the jungle.