Dual citizen from Latin America traveling to UK - advice re: recent changes

[Nightmanagerfan]

Posting on behalf of a friend who is travelling to the UK this summer.
Friend is a British citizen (born in another EU country, but has a UK passport and lived in the UK as an adult before emigrating).

She now in Latin America and her daughter only has a passport from a Latin American country where her daughter was born. Dad is Latin American.

They are traveling to the UK and wondering if an ETA is enough. There have been various stories in the press about dual citizens being denied entry eg this one in the Guardian.

Does anyone have any advice?

My friend hasn't got enough time to apply for a UK passport for her daughter before travel. The worry is that she gets to the airport and they consider her child a British CItizen and she is denied boarding. Any advice appreciated!

If your friend was born abroad, then it might not be immediately apparent to the system that her daughter might have a claim to British nationality. Did your friend naturalise in UK?

Or is she British by descent via a British born or naturalised parent?

I have dual nationality. I had my other nationality's passport details on my API. I couldn't check in to my flight online. I had to go to the check in desk and show my GB passport. I was told they would have not been able to allow me to board if I hadn't had my GB passport.

I don't know how their system flagged me though.

She is British by descent so passing her citizenship onto her daughter is not automatic.

Friend has found a letter from the passport office explaining that her daughter is not automatically a British citizen (from when she applied for her daughters British passport and it was rejected) so she hopes that will be enough!