Learn another language to learn your own better

I hear people say that we should not teach children other languages in school. They feel that it would confuse the children and retard their progress in their own language.

Nope.

I used to fail grammar tests in English quite often.  Later in life, I studied Spanish, Greek and Hebrew. Today, I teach English grammar to Puerto Rican kids.

I learned my own language best when I learned another. There is no better way to learn your own language than to study another.