@redredredredlorry
What happens for children who's parent has died? Do people carry death certificates?
I'm a child of divorce where, for a time, my parents lived in separate countries and I traveled with each of them separately without any questions.
I never even knew this was a thing till I read the many threads on here about it, and when I asked my parents, neither of them knew anything either.
For reference, these trips would have happened many times a year between 2002 and 2013, so I don't know if it's changed massively since then.
If the other parent has died, then usually it would suffice to say that if asked. Some countries do require the actual documentation.
It's not a new thing, just maybe more widespread as individual countries' legislation. And many countries have much more coherent legislation about it- not sure about now, but some years ago to get into Canada as a lone parent your consent letter needed to be witnessed by a notary for example.
I also travelled to Italy with my daughter who was 12 at the time, and two fourteen year old friends- I didn't need the consent letter for the friends, even though they weren't my children, because at 14, for Italy, at that time, there was no requirement for consent, but I did need it for my own daughter.
The confusing information about it really stems from it not being a blanket ruling- that only some lone adults travelling with minors will be asked- leading to people saying "been travelling for years, never been stopped" which won't be helpful if the poster asking the question then gets turned away at the gate. (doesn't usually happen, as the non travelling parent can in extremis be contacted on the spot) and also because everyone (including the govt website and Mumsnet- who have a page somewhere about this) underline the different surname thing. It is NOTHING to do with different surnames- it's simply lone adults travelling with minors. I wrote to MNHQ about this, as their info at the time implied you'd only be stopped if your surname was different- not the case.
Lone males travelling alone with a child will be stopped and asked more than females.
If, for whatever reason, the other parent refuses consent, then rather than risk being turned away, it would be better to get a solicitor's endorsement confirming that the other parent has refused.