I am allergic to flashiness; a Google Forms survey on vacation habits does not directly prove identity document verification behaviors.
Just because someone fills out a form does not mean we can definitively deduce that they verify their papers in advance, as stated intentions do not always reflect practical reality.
External constraints change what actually happens, regardless of initial planning.
For example, in Berlin, appointments for papers at Bürgeramt are so rare that even the most organized citizens can find themselves at the last minute, not by choice, but out of necessity.