What is at stake here is the depth of our understanding; it is true that raw survey data can often lead us to hasty conclusions. The idea that 75% of travelers check their identity documents well in advance is relevant information, but it becomes clearer if we also consider that frequent travelers are more inclined to anticipate this task. The notion of ‘why’ is crucial because it allows us to distinguish between a forced habit and an informed choice, as shown by the repeated experience of globetrotters.