The definitive study of age-gap relationships was done by University of Massachusetts researchers Denise A. Hines and David Finkelhor It is a thorough and comprehensive meta study.

They found no causse for alarm.

full text: https://www.unh.edu/ccrc/sites/default/files/media/2022-03/statutory-sex-crime-relationships-between-juveniles-and-adults-a-review-of-social-scientific-research.pdf