I'm not even 40 yet and my grandparents were in their 30s when the war ended. My parents had me when I was about my age now and similar for my grandparents for my parents.
It wasn't until after they all dies that I realised that all the model Spitfires and things my granddad had weren't from his memories of fighting in WW2. He was in school during WW2. He just liked model planes.