In late September, Tashi, a student in a rural village of fewer than 100 people in south-eastern Tibet, returned to school after a six-week lockdown.
The 15-year-old’s grades had deteriorated markedly after weeks of trying to take classes on a smartphone with patchy internet in a crowded house while being cared for by ageing grandparents. His parents were 750km away in Lhasa, the capital, working.
