I’ve had 2 friends recently that couldn’t go on their booked holidays because of passport rules (e.g time left on passport), one of whom had got to the gate at the airport and only then was told. He thought he had 6 months left so would be fine, but if flying to the EU you need 10 years from the start date, and his passport was 10 years 6 months from the start date. Every year on MN there’s posts asking for help regarding issues like this - leading to huge amount of anxiety and, often, crushing disappointment
So please, check your passports and the passport rules of the country you’re visiting!