Many employers want to hire people who have experience in foreign countries. They want to know that their employees are independent and excited about taking on new challenges. One of the best ways to demonstrate that you have these skills is to visit a school in a foreign country. By doing this you show your future employer that you not only know how to communicate well with people of other cultures, but that you also are not afraid of a challenge.
If you are studying a foreign language or culture, immersing yourself directly into that culture by visiting a school abroad is a great way to learn. If you are surrounded by people who only speak the language that you are trying to learn, you will learn more quickly and efficiently. You can learn a lot about other cultures from books, but nothing will help you understand other cultures more than going into the culture and learning for yourself.
Visiting other countries and studying at schools abroad will help you develop personally and grow. You will most likely be separated from your friends and family and will have to learn to make new friends and be independent. You also may learn things about yourself that you never knew, or come to realize how strong of a person you are when you are thrown into a challenging new experience by yourself.
Visiting schools in foreign countries will make you more culturally aware. You will find that different cultures have many similarities to your own, and that even though there are important differences between cultures, these differences are not bad. You can teach these lessons to your friends and family when you get back to your home country.