In the 70s there were lots of books and movies starring kids who carried on their lives under the radar of adults (like Stranger Things, but before D&D), trying to avoid exactly that sort of small-town surveillance. They, and comics -- where everyone had a secret identity -- were my models for dealing with the plurality of worlds, where pretty much everyone but me was both religious and xenophobic (at least it felt that way at the time). Physics is now debating the multiverse as a somewhat serious concept, but it was a given in comics and SF, and a perfect metaphor for plurality-of-worlds psychology.