First, I have a chance to learn a new language. In today's world, it's important to be bilingual or even multilingual. International communication is very important for our global economy. For instance, I chose to study in the US because I can develop my working skills in a multiple-culture environment. These may guarantee my chance of employment after college or university. Also, the Internet and TV give us the opportunity to receive information from all over the world. So I need to be familiar with different languages to order to take advantage of this.
Second, learning outside of class is a good way to know about different cultures. Familiarity with other cultures is also important today. It teaches me respect for other ways to life. Or it can encourage peaceful solution to conflicts.