Let's forget what we have already invested in this idea: should a simple Google Forms survey really serve as a basis for explaining such nuanced behaviors as verifying identity documents before a trip?
It is a waste of attention that doesn't yield much unless we explore the why.
To understand why 75% act in advance and 25% at the last minute, we need to go beyond raw data and explore motivations.
For example, if the survey did not ask why people verify their papers early or late, then it cannot explain motivations.