I want some help writing a character.
Her name is Christina and she lived in an underground bunker, in a post-apocalyptic world, so she’s really sheltered. But she has to leave, along with a group of more experienced Wastelanders, and has to adapt to the surface.
In this world the bunker dwellers basically live in strict totalitarian-esque place, where the population are made to follow strict rules, upkeeping their shelter and society. The surface by contrast, is the opposite for the most part. Nomadic scavengers and raiders, with scattered farming settlements and more primitive tribal societies.
How do I realistically write the culture shock that Christina experiences on the surface?