Varies with definitn: The brain continues to mature and make connections that finalize thinking until into the 20's. Women a little sooner than men. Infants are taught by parents example that they are little kings/queens who provide all their needs with a simple cry. For some reason some adults think they will become well behaved suddenly after they learn to walk/talk. They don't. Right/wrong is crude until at least 8.
Answered 2/5/2018
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2 doctors weighed in across 2 answers
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