“We are trying to teach children that stories are usually an unreliable basis for assessing the effect of treatments,” Nsangi explained, adding that stories amount to anecdotal evidence. The kids are also learning to watch out for the perverting effects of conflicts of interest, and to recognize that all treatments carry both harms and benefits and that large, dramatic effects from a treatment are really, really rare.
https://www.vox.com/2016/10/6/13079754/teaching-critical-thinking-schools-health-claims