No, he's saying that children are impressionable. This is proven. But if your perspective is taken into account, then every student has to be evaluated on their capacity to make any decision before being allowed or disallowed to make it. This won't work because no evaluation system will work for every student in every situation, and as soon as one student's capacity for making a decision is overevaluated and that student is hurt or something, the entire system will be blamed. It's much easier to understand trends of student development and to realize while the occasional very mature student is restricted by the system, most of them follow some basic patterns, including a vulnerability to exploitation by those in authority until late high school or afterwards.