[Symbiote]

In which country was that? You mention GDPR, but I've not seen it in the ~10 EU countries I've used airports in in the last few years.

[alkonaut]

That was Sweden. I googled and it was introduced around 2007 in several airports but I can’t see when it was discontinued but I think it was around a bit into the 10’s at least. It has definitely not been used in the last 5 years in those airports and possibly not even the last 10.

[Symbiote]

I probably just missed it.

I mostly use the main airport of southern Sweden — Copenhagen.