If you had to choose a cinematic universe (like Marvel, Star Wars, or James Bond) to live in, but you had to be a background extra with no significant role, which universe would you choose for the safest and most interesting daily life?

If I had to choose a cinematic universe to live in as a background extra, I would pick the Harry Potter Wizarding World.
It’s the best deal: I get to skip all the life-threatening drama, but I still get to enjoy all the wonder and magic. High interest, super low risk—perfect background life.
The world is filled with magical safeguards, protective charms, and healing spells far exceeding Muggle medical capabilities. Being able to access St Mungo's Hospital for Magical Maladies and Injuries for even minor ailments is a huge safety net.