She’s dissing her parents, demanding to be supported by them, and she calls THEM selfish? She would never have dared to try this if her parents were Greatest Generation or earlier.
Right. I moved out, on my own at 19. Same with my siblings around the same age. My parents were Greatest Gen. Same with my wife's parents. Soon as she turned 18, she had to pay her parents rent money for the privilege of staying in the house (until she left at 21 when we got married). Her siblings also paid rent. That's just the way it was, you turned 18 and you were expected to behave as an independent adult if you had Greatest Generation parents.