Vent: Anime shows where siblings never clash seem off to me

I caught an episode of a slice of life anime last week, and the two sisters were just too nice to each other. Back when I was a kid, my sister and I would fight over dumb things like who got the window seat. Without those little arguments, their bond in the anime feels kinda fake and too perfect. It would be more real if they showed some bumps before they come together.