International school selection often gets reduced to rankings and fees, but the factors that most affect a child's day-to-day experience are usually more specific and personal than either of those measures capture. Curriculum fit matters significantly, particularly for families anticipating future moves, since some curricula transfer more smoothly between countries than others, affecting continuity for a child's education long-term. Class size and student-to-teacher ratio directly affect how much individual attention a child receives, and touring a school in person, observing an actual class in session, reveals far more than a glossy admissions brochure. Language support programmes deserve close attention for non-native speakers, since the strength of a school's additional language support can significantly affect how quickly a child adapts academically and socially. Ask current parents directly about their experience, not just admissions staff, since parent communities often reveal practical realities — communication responsiveness, extracurricular quality, how bullying or social issues are handled — that official materials rarely address. Waitlist timing also matters enormously for competitive schools, and starting the application process earlier than feels necessary is almost always the safer approach for popular institutions.