In the Richard Donner SUPERMAN movies, the Post-COIE John Byrne SUPERMAN comics, the SMALLVILLE TV series, and the DCEU, Clark Kent was not portrayed as having grown up wearing glasses when he lived in Smallville. It was only after he decided that he would become Superman that he adopted the glasses that would help to disguise his identity.
That being the case, wouldn't EVERYBODY in Smallville who knew Clark well recognize him as Superman? They see and hear Superman on TV when he appears before the media, and they see his photo in the newspapers. Even without the costume, those who knew Clark well would absolutely identify him as Superman. The glasses, etc., might fool those who never knew Clark in Smallville, but shouldn't fool his Smallville associates.
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