A study of young children' s ability to learn foreign languages found that those with parents who read them more than one book per week in their native language were 75% more proficient in the foreign languages that they learned than children whose parents read them one book per week or less
A secondary finding of the study was that children' s ability to remember new vocabulary in a second language drops off sharply after the age of 6, when it becomes 75% more difficult to retain new words learned in the second language
Students who begin studying a language later in life would have had an easier time learning some aspects of that language if they had begun studying it as a young child.