@spider-writes well they explained it more in the show imo but ellie was almost coddled for five whole years by joel and tommy. she only started using the rifle properly with tommy a few months before joel died, and shed only been doing patrols for about a year? maybe longer? so she's kinda been shielded from all that stuff, so of course she's not all out murderer yet, and shes still grieving a lot in the show, which i actually prefer to the game, because in the game, it felt like pure revenge with little moments of grief and memory, but in the show, theres a slow decent into the ellie we know from the game
