In 2021 the founders of PalFish, a platform based in China which connects English teachers and students, realised its future lay abroad. The Chinese government had just launched a crackdown on private tutoring, after Xi Jinping, its leader, accused the industry of preying on the educational anxieties of China’s parents. The firm considered expanding to Latin America, the Middle East or Russia before landing on South-East Asia. Three years on, 10m students in the region…