It will broaden your understanding of other cultures which will help you appreciate differences and be more accepting of social diversity. It will increase your independence and self-awareness. Learning to live in an entirely new environment will stimulate your resourcefulness and life-management skills. It will give you a deeper appreciation for the complexity of world affairs and the role of the United States as seen through the eyes of the world. Finally, it will enhance your resum and make you a more desirable candidate for graduate school, scholarships, and the job market.
Prospective employers realize how invaluable international experience is in the world of the future.