Fighting for a Chair

My daughter has informed me that she will have to decide where she wants to sit on the plane.  She says that she prefers the seat near the window, but also likes the aisle seat.  She wants that seat so she can grab food when the carts go by.  At the same time, she says she does not want the carts to hit her arm.  I looks like we might have to compromise and take turns.  I really like the window, but on a flight like this, you can't see much.  The window shade stays closed most of the time.