Reply #28: It occurs in the same developmental window. No asian language has "pictographs".

[WildNovember]

If you think so, you've been misinformed.

Most Asian languages don't use hanzi/kanji, which is what you're probably referring to. Chinese, Japanese, and old Korean being the only ones I can think of.

Today Korean uses hangul (phonemic alphabet) almost exclusively except for specialized tasks; Japanese uses a mix of kanji & kana (phonemic alphabet). Chinese use alphabet-like pronunciation gloss as a teaching aid when children learn hanzi.

Chinese characters are not "stored in a special part of the brain". That is popular myth. Chinese characters are not processed/analyzed as "pictures". Few Chinese characters are "pictures" in the way you mean.

No tonal phoneme means "100 different things". That's a myth too.

No, they don't have to pay any more attention than you do speaking your own language. That's what being a native speaker of a language means.