the thing that bothers me about "kids will get traumatized by media" type discourse, other than you know the fascism, is do you know what the most memorably upsetting media i experienced as a kid was? stuff that stuck with me for years, interfered with my sleep again for years, was the thing i saw when i closed my eyes at night for probably a decade and influences what freaks me out to this day?
- a few specific incidences (from children's media) of the kind of physical harm or (often fantasy) violence widely considered to be totally appropriate for little kids
- horror movie advertisements
when i was eight or nine i watched kill bill vol. 1 with my parents and had to ask my mom what a pedophile was. this didn't have a terribly profound effect on me, though i do remember it because usually at that age, when i had to ask my mom about the definition of a word, i formed a pretty strong memory of that. on the other hand, when my mom read my mrs. frisby and the rats of nimh at six or seven, the child mouse having pneumonia and being delirious with fever freaked me out so bad that it changed the trajectory of my life.
you actually don't know what will bother a kid in a book or movie. you can't predict it or really protect them in any meaningful way. some kids will freak out, it's developmentally normal and you can't stop it.