Most of this is just noise; the mere fact that a survey was conducted does not confirm the strength of an observation on identity document verification.
We control what we can control: the quality of data collection and the representativeness of the sample.
Seventy-eight responses are raw data, but they do not guarantee a robust conclusion on traveler behavior.
If all 78 respondents are students from the same university, their behavior does not reflect that of the general traveler population.
This posture requires discipline in analysis to separate facts from hasty interpretations.