Premise: Van Mieu Quoc Tu Giam, or the Temple of Literature, is a well-known tourist destination in Hanoi, but in the days running up to important exams during summer, expect to find it mobbed with thousands of students and their parents all praying for a dose of luck. In this photo, students wait in line to buy tickets for the temple.
Hypothesis: The parents of students don't pray for luck because the parents have to take exams.