Let's backdate this to when he was 2.5 years, then he was barely saying a word.
When he finally spoke, his pronunciation was off- no one but us could understand what he was saying. He was already 3-4 years old then.
When he finally got most of his pronunciation right, we soon discovered he was an introvert child at school. Too introvert. He didn't (still doesn't i think) interact with his classmates although he parallel plays with them.
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