If someone has something that they love to talk about, whether it be what they did in the war, or their experiences with such and such, it is far better to find a group where people are happy to talk about the war, their hysterectomy, whatever, sometimes people talk about unresolved issues, but they will not get resolved by talking to the same people again and again. If you have had a bad birth experience, for example, there are listening services, and lots of other supportive people, and by telling the story, and feeling well listened to, you can come to terms with something and only bring it out when relevant
There may be some people who might be persuaded to write their memoirs, if it is a wartime experience, the local historical society might be interested, or the family history society for your area. That way their knowledge is shared and people can read it in years to come. How I wish more people did that