My grandparents (all long dead now) were young adults or teenagers during WWII, and all actively involved except my dad's mum, who was still at home.
Aged 10, I had to do a school project on the war, for the 50th anniversary of VE day. We were asked to talk to them and record what they said. It stayed with me.
My dad's dad, who was then very ill and in a home, said very little and was upset, and then said very passionately that he didn't want to hear people playing Vera Lynn, because 'it was alright at the time but I don't want to remember it'.
My mum's parents, who were then slightly younger, talked to me about what they did and how it was, but they were quite awkward about it. My granny 'only' did what women got to do. My grandpa worked the radar - he failed the tests for active service and he lost friends. They both said very little about this, but I know from clearing out my granny's house that they had lost a lot of people they loved.
I don't think any of them imagined that VE day would have been turned into such a horrible, jingoistic exercise. They were all sure that it wasn't about fighting 'Germany' but about fighting a country that had killed millions of its own people in death camps.