Your brain is not formed when you're born. You have to build your brain.
Kids will use their own system at the stage that they are, they're not (learning merely by) imitating you.
Language develops by interacting with other people talking to you.
Different languages cut the world into different slices.
Human beings are able to reflect on their existencefor now that distinguishes us from other creatures.
Of the top 30 words that parents are calling kids' attention to ('look at the'), 12 are animals.