While their classmates are adjusting to the new school year, five young Hongkongers will be putting some of their non-academic skills to the test in Japan. And in a skateboard team where the oldest member is just 16, Katniss Wong Yi-huen and Kamus Wong Yeuk-ching are the two youngest competitors in the city’s Asian Games squad of 580 athletes across 38 sports. And while Kamus Wong is already 12 years old, her teammate could end up celebrating her 12th birthday at the Games’ opening ceremony at...