Actually....by the time a little child has entered primary school - they can already speak, so you're starting too late (呵呵呵呵). By the time they're 1 year old, they can recognize the four tones without trying since they've heard it thousands of times, even if they can't express it. By the time I was 1 year old, I knew two important but sinister words.... "my" and "me". 谢谢!!

I understand that your question is a rhetorical one, but I can say a big yes! -- A long time ago I watched a few programs showing how Chinese kids learn, and I suddenly understood a whole lot at once. Do you have something in mind to teach me? :)

yes please...i want to learn it from zero :)

Maybe they learn from their parents?

Since you can not insert it in our brain...sure ;-)