Punctuation is almost certainly taught, but how well it is learnt (and taught) may be a different matter.
It's possible, but I've noted before that almost no one from northern Africa (Algeria, Tunisia) punctuates when they come here. Believe it or not, I guessed Algeria before I looked at the profile, hence my comment. That may be a prejudice; if so, perhaps the OP could disabuse me of the notion.Punctuation is almost certainly taught, but how well it is learnt (and taught) may be a different matter.
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