Design is all about solving problems, but the problems we solve are rarely ours alone. Whenever you’re designing something that will be used by other people it’s important to take their perspective into account. Each person is unique; no two people will experience the same problem in exactly the same way.
Being able to put yourself in the shoes of other people is required to craft great solutions. If you don’t take the time to see things from the perspective of others you’ll end up making assumptions and guesses that will degrade the quality of your work. The more you practice being empathetic, the more you practice being a great designer.