It sounds like you're looking for a version of the rare 1973 educational film/report "Fruhreifen Report 1973" (often associated with the "Avi" file format).
: Romances between teenagers are often met with harsh intervention from teachers or parents, leading to crises of trust. Moral Contradiction : Critics from Film Blitz Letterboxd -FULL- Fruhreifen Report 1973 Avi-
"Subject 14," he began, his voice gravelly. "A case of typical Bavarian precociousness." It sounds like you're looking for a version
Here is a story inspired by the atmosphere, aesthetic, and production era of the 1973 film: The Interviewer's Tape "A case of typical Bavarian precociousness
Frühreifen-Report (1973), also known by the English title 14 and Under
series, this entry leans more heavily into its moralizing frame—a typical trope where a narrator (a fictional "youth welfare officer") introduces vignettes with a mix of academic concern and lurid storytelling. Distinctive Era Aesthetic: Like other films produced by Wolf C. Hartwig