Why is this the answer?

The answer is onion because this clever riddle uses fun word pictures to describe something you might find in your kitchen. An onion is a special kind of vegetable that grows in the ground, and it is the only thing that fits all the secret clues in the puzzle perfectly. Let us look at the first clue: "Take off my skin." Think about what an onion looks like before anyone cooks with it. It has many layers, and the very outside layer is a dry, thin, papery skin or peel that you always have to remove before cooking or eating it. When you peel the onion, you are literally "taking off its skin." You do this to get to the juicy, crunchy part inside. The second clue says, "I won't cry." Even though the onion is a plant, it is not alive like a person or a pet. It does not have feelings or a heart that can feel sad. So, when you peel off all its layers, it cannot shed any tears. It just stays right there on the counter, perfectly happy. Now for the last and trickiest clue: "but you will." This part is talking about your eyes and the amazing way they protect themselves. When an adult slices into a raw onion with a knife, the knife cuts open tiny cells inside the onion. These cells release a special, invisible gas into the air. This gas is very light, and it quickly floats up from the cutting board toward your face. When that gas gets into your eyes, it starts to irritate them or make them feel itchy and bothered. To wash this irritating gas away, your eyes make tears. The tears are a natural way for your body to protect you. And those tears are why you are crying, even though the onion is not. It is a wonderful puzzle that plays on a common kitchen experience, making us think about an everyday object in a very surprising way.