Answer:
Life being smooth and beautiful
Explanation:
A crystal stair is smooth, beautiful, and has no cracks. Therefore, the comparison implies that life is not smooth and beautiful. Instead she describes, like I said earlier in the literal meaning, a worn-down staircase. The “tacks”, “splinters” and “boards torn up” represent the hard times and adversities in life.
I'm pretty sure it's personification, because hats can't really watch things.
Fast food is convenient because it is cheap and it’s prepared ahead of time and you don’t need to cook it. You just order and enjoy the meal especially if you don’t know how to cook. It saves time and energy.