You might find it silly but I've read a couple of reports (over the past couple of years) which make that assumption.
https://web.archive.org/web/20230713012704/http://www.nausicaa.net/~lgreenf/anime.htm Running into dead links while chasing potential sources.
I would like to avoid using the Brony documentary for this.
A call for articles debunking "only kids watch cartoons" for clueless people. #anime
For the next update, I might tidy up the prohibition reference, and talk about animations targeted at adults more.
Remember that there were people who would use "porn sites" as general video hosting sites, perhaps because of less arbitrary / weird moderation. #FreeSpeech
I view it from both lens, so I might think of how someone might apply a piece of policy (or draft that), and also call something out.
Software Engineer. Psy / Tech / Sex Science Enthusiast. Controversial?
Free Expression. Human rights / Civil Liberties. Anime. Liberal.