Interesting fact:

The brain develops rapidly, so it’s important, therefore, that we learn the basics early on. It can become trickier to pick up certain skills, such as language, once we reach a certain age. The Chinese language, for example, requires a unique pronunciation that is very different from that of English. If by the age of 3, a child within a Chinese upbringing hasn’t learned English, then the brain will re-allocate its attention to dealing with other tasks.