What are some films that are uncomfortable to watch because of what happens to kids in them?

The horror film "Megan Is Missing" comes to mind as an easy example. Pretty generic found footage film about a young teen who gets kidnapped (only 13-14, younger than the norm for horror films), but it's done in a realistic manner. Realistically annoying middle schoolers/high schoolers drinking, cursing, getting into hijinks… toying around. Yeah, I didn't need to think about that, but it's a part of the film nevertheless.

Then it gets to the end and it throws horror tropes at you. I expected something more "realistic", like being sold into trafficking. Not an underground torture dungeon. That does happen in real life when it comes to kidnappings and serial killers, but it's rare. It's much more common in horror media.

When I saw it, I thought the actors were 18-20 year olds playing teens. Then I saw they were the same age as the characters. Yeah… yeah, no. I feel uncomfortable letting kids act all that out and talk about the stuff that happens in the film.

Another example would be the British made-for-tv drama "No Child Of Mine". It's about a little girl who is sexually abused and sex trafficked by her family. I clicked it on Tubi but wasn't expecting it to be so graphic. It's a deeply unsettling drama.

Edit:

When it comes to documentaries, "Children Underground" is the default example. Ever wanted to see a film about homeless 5-14 year olds doing drugs, having no supervision, hurting themselves, and being miserable? No?

I saw it once as a young teen and it stayed with me. Saw it again last year and it's just as good.

There are also some documentaries with graphic scenes of dead or injured kids. These are allowed even in TV-14/PG-13 documentaries.