This question generates a lot of discussions.
Suppose a child has severe speech disorders. In that case, it is not advisable to complicate their problems by introducing another language system because almost all languages have some characteristics contradicting each other.
This primarily concerns their phonetic (sound) aspect: every language has unique sounds, and learning a foreign language involves acquiring proper pronunciation. This is where the difficulties begin. For example, English has interdental sounds, which are considered a speech disorder in Russian that take a long time to correct.
Suppose a child has severe speech disorders. In that case, it is not advisable to complicate their problems by introducing another language system because almost all languages have some characteristics contradicting each other.
This primarily concerns their phonetic (sound) aspect: every language has unique sounds, and learning a foreign language involves acquiring proper pronunciation. This is where the difficulties begin. For example, English has interdental sounds, which are considered a speech disorder in Russian that take a long time to correct.