So why should your child learn a foreign language? Perfecting English is hard enough, why add another language? The reason to this is because it is good for brain development. Studies show that bilingualism is thought to prevent the cognitive decline that comes with aging. It is recommended that kids learn a foreign language as early as possible. | 100 Words to Learn in Spanish Children's Learn Spanish Books by Gusto Gusto, Paperback | Indigo Chapters