Just going to add in a few other things that a lot of people seem to miss because it was either de-emphasized or cut entirely from the movies:

-Haymitch Abernathy was 16 when he won the Hunger Games, and the Capitol attempted to force him into prostitution as they did with Finnick and many other popular victors. He refused, and in retaliation, they gradually killed off everyone he loved one by one—his friends from home, his family, his girlfriend. He began drinking heavily at a young age to deal with the trauma of the Games, the loss of everyone he’d ever cared about, and subsequently having to continually relive the trauma of the Games in mentoring roughly 50 children, two each year, whom he’d then have to send to their deaths in the Arena.

-The Capitol also attempted to force Joanna Mason into prostitution. She, too, refused, and like with Haymitch, the Capitol retaliated by killing off everyone she loved one by one. She alludes to this in both the book and the movie version of Catching Fire, not flinching when she enters the Jabberjay area of the arena because there’s “no one left” that she loves. The movies don’t really explore this, though, while the books do more exploration both with everything the Capitol has taken from her and the lingering effects of her PTSD from her imprisonment by the Capitol.

-The only reason Peeta and Katniss weren’t forced into prostitution was because the Capitol was too invested in the “Star-Crossed Lovers from District 12″ narrative.

-Also, Katniss spent the latter half of her first Hunger Games deaf in one ear and had to have her middle and inner ear reconstructed after the Games—the explosion at the Cornucopia permanently fucked up her hearing in that ear. She’s able to hear again after the surgeries but never quite the same.

-And Peeta had a prosthetic leg! He was severely injured while fleeing the “Mutts” at the end of the Games and was bleeding out from his leg by the time he and Katniss reached the Cornucopia. Katniss gave him a tourniquet using one of her last two arrows to tighten it. Doing so saved his life, but by the time the Capitol doctors took them out of the arena, the leg was beyond saving and had to be amputated. Katniss finds this out in their “post-Games” interview with Cesar Flickerman.

-Just generally the movies glossed over or completely cut a lot of characters whose experiences in the games left them physically disabled (Katniss’s partial deafness and Peeta’s lost leg being cut entirely, Beetee’s spinal damage from the forcefield leaving him wheelchair-bound being largely kinda glossed over) or with PTSD (Katniss and Peeta’s PTSD isn’t really explored that much, Joanna’s PTSD is pretty much skipped over entirely, Annie’s barely in the movies at all, Haymitch’s entire backstory is cut, the fact that Finnick is basically just constantly putting on a show and barely holding it together under the surface isn’t ever really explored, pretty much all of the addiction subplots including Haymitch attempting to quit drinking and Katniss starting to drink at one point and everything related to morphling are cut…).

-Basically as “rough” as the movies are they sanitized the FUCK out of the Hunger Games and the world surrounding them, and that’s…not a good thing.

TL;DR: @isashi-nigami is completely correct, The hunger game movies are the exact thing the hunger game books was trying to warn us about.