I would agree with this. My observations after having children, is that they do exactly what they see until they understand what they see and make it their own.
For example - my youngest recently had an abscessed tooth removed. He is 5 this year. The dental surgeon was astounded that he used the words nitrous-oxide and Novocain. The surgeon said things like giggle gas and sleepy juice, and the five year old dead pan corrected him.
Kids will say what they hear - outside of a disability/difference of that kind. If they hear short baby talk, they say short baby talk. If they hear larger words, in context, often, then they'll use those.
For example - my youngest recently had an abscessed tooth removed. He is 5 this year. The dental surgeon was astounded that he used the words nitrous-oxide and Novocain. The surgeon said things like giggle gas and sleepy juice, and the five year old dead pan corrected him.
Kids will say what they hear - outside of a disability/difference of that kind. If they hear short baby talk, they say short baby talk. If they hear larger words, in context, often, then they'll use those.