Trekking the Annapurna Circuit in Nepal back in 2007, I often encountered children from the nearby villages yelling “pens, pens” when we crossed paths. I thought, well that’s better than “sweets, sweets” which was a common refrain while backpacking through Latin America and Southeast Asia. I would read in guidebooks that the en vogue recommendation of that time was to give children useful tools such as pens for schoolwork rather than the dental bulldozer of candy. ...