The first thing many Bangkok parents do after having a child is research international school waitlists, not primary school, not secondary, but the waitlist itself, which in some cases opens before the child can walk and closes, at the most competitive schools, before most parents have thought to look.
Thailand had around 100 international schools in 2014 and has 275 today, with student enrolment climbing from fewer than 50,000 to nearly 93,000 over the same period. The growth is striking on its own, and more striking when you consider that it has happened against a backdrop of falling birth rates, a shrinking pool of school-age children, and a domestic economy that has not been uniformly generous to the families paying for it. The demand is not incidental, and it is increasingly coming from Thai families rather than expatriate ones.
Tuition fees for the top ten international schools in Thailand range from 905,000 to over a million baht per year, and the families absorbing those costs are making a considered bet, not just on education quality but on a particular vision of what their child's life should look like. The international school is not simply a school but a signal, a network, and an early positioning decision about the world the child will eventually move through. Enrollment is viewed as a symbol of status and global integration, with parents seeing it as an investment in both future opportunity and social prestige.