This article says that studying abroad is absolutely necessary because our world in globalizing. Being bilingual in becoming the new norm and kids should study abroad to learn the cultures and diversities of other people to gain experience and to be able to deal with people in the future.
http://www.nytimes.com/roomfordebate/2013/10/17/should-more-americans-study-abroad/the-cost-of-not-studying-abroad-is-real