The brain does not fully develop until 25, 18 is simply one of many thresholds where we've decided (in the US) to start officially transitioning children into adulthood. Others include 14-16 (driving), 21 (drinking), and 25 (car rental).
So if 17 can't be called a child, what can? You have to draw the completely arbitrary like somewhere. Do you chose the legal 18 (in the US)? The Hebrew 13? Some other metric?
So if 17 can't be called a child, what can? You have to draw the completely arbitrary like somewhere. Do you chose the legal 18 (in the US)? The Hebrew 13? Some other metric?