I mean most people in the UK never watched dragon ball (just seeing some episodes in the late 90s). Maybe 1% had in the early 2010s. Now maybe more, because of Super and because anime is more mainstream amongst Gen Z and Gen Alpha.
It's more about when you watched it or saw aspects of a movie (eg brands, fashion, hairstyles) than the age itself. Like, I have no nostalgia for old movies I never saw. DBZ is 80s/90s but I watched it in the early 2010s.
I guess the crew arriving at Sabaody might have that? Like it's cool to rewatch as an old scene. But it's not like watching old DBZ and DB which is more like wow back in the day ya get me...idk.
Tbh I'm not sure what you mean by the nostalgic effect. Can you post the definition here?
Was dbz considered too violent to watch?
That's really cool you make cosplays. How did you start making them the first times?
Maybe the Dragon Ball/Z Discussion and Dragon Ball Movies & GT sections are where you might want to make or find topics of interest. There's also an anime/manga section...