
Elizabeth B. answered 07/26/19
I Know It's Hard; Let Me Help
I assume you are not writing in the fantasy or sci-fi genres, because it seems me that sort of thing happens all the time in those. In those cases, it is the world that attracts as much as the characters that inhabit it. We read the novels because we like visiting the place. An everyday example would be going to the Bahamas each year and staying in different hotels each time. Some things are the same, snow white beaches, crystal waters, great cocktails. But Benny the Doorman is at the Sleeping Iguana, while Rocky the Doorman is at t. The Lounging Lizard.
Now of course what we like best is both. We go to the Bahamas and we stay at the Lounging Lizard each time because Rocky is just such a great doorman and we like to see him. Thus your point about becoming vested in a protagonist. But a great story is more than its protagonist. I think if the place were described vividly enough, and was interesting, and there was a continuity of supporting characters, that we could accept a change of protagonist perfectly well.