Let's get rid of the glossy: this Google Forms survey does not prove that holiday planning habits explain why 75% of people verify their identity documents in advance.
It is a statement that changes nothing about the actual cash flow nor the execution processes for most people.
Without specific questions about motivations for document verification, such as the time required to obtain a passport in Germany, it is just an intuitive reason lacking concrete evidence.
More than a simple correlation is needed to move from “a study says” to “evidence shows”.