Isaac Asimov's Profession (1957) with the "House for the Feeble-Minded". The surprise conclusion has shades of China Meiville's The City and the City, about two virtual cities inhabiting one physical city. Our modern world includes public, non-public, national, extra-national, cyber and fictional worlds overlaying geographical spaces.
> For most of the first eighteen years of his life, George Platen had headed firmly in one direction, that of Registered Computer Programmer. There were those in his crowd who spoke wisely of Spationautics, Refrigeration Technology, Transportation Control, and even Administration. But George held firm. He argued relative merits as vigorously as any of them, and why not? Education Day loomed ahead of them and was the great fact of their existence.
https://www.abelard.org/asimov.php
> For most of the first eighteen years of his life, George Platen had headed firmly in one direction, that of Registered Computer Programmer. There were those in his crowd who spoke wisely of Spationautics, Refrigeration Technology, Transportation Control, and even Administration. But George held firm. He argued relative merits as vigorously as any of them, and why not? Education Day loomed ahead of them and was the great fact of their existence.