I was warned I could get a fine the next time I travel in Europe for one reason (opens original article in a new tab)

A traveler was warned by German border control that their damaged passport could lead to a fine if used for future travel, as airlines may refuse boarding if a passport is deemed invalid.

• The traveler was warned by German border control that their damaged passport could result in a fine if used for future travel.
• The passport had visible damage from being washed, including wrinkled pages, small tears, and a faded cover, but personal details remained readable.
• EU's Entry/Exit System (EES) requires valid passports, and airlines may refuse boarding if a passport is deemed invalid, risking fines for the carrier.