Back when this was posted on Reddit someone who worked in CPS chimed in. The short of it was: Yes , men raping their under age daughters is frighteningly common in some states and a common form of victimization of the girls that CPS handles.
Intriguing, where might I find more of this type of content?
There is a substantial YouTube library of breakdowns on why we (usually North Americans) continually choose cars.
There are so many.
Definite recommend for Helliconia. One of the few book series that has epic level story structure but digs into the every day lives of different species and how they communicate their culture through time.