Outskirts are the place… Doesn’t quite work. The best/least awkward way to fix it is just to delete the place, so it becomes outskirts are where… or better yet, change the whole sentence to No respectable person ever goes to the outskirts of the city and merge it with the next sentence by changing the period to a comma and deleting It’s.
Due to the English language’s lack of a universally recognized gender-neutral singular pronoun, a lot of people now use they whenever talking about one person when gender is unknown, inapplicable, or just not relevant. The reflexive/intensive form of this singular pronoun is themself, not themselves.
I also combined the last two sentences of the example to change the flow somewhat, but you could leave it as is if you want to keep the choppy feel (perhaps to put more emphasis on the last question).
No respectable person ever goes to the outskirts of the city, the domain of creatures and outcasts. Your protagonist is living there. Are they an outcast or a creature themself, or have they a more specific reason?
I have no idea what the writer of the original meant by creature, but it’s used awkwardly here, and I think it ought to be replaced with something else.