Ok boomer? This is just out of touch with modern day reality.

dnf upgrade

I'm guessing I'm not alone in this but the redesign + API restrictions are why I'm here on Lemmy

Please tell me this is in the US

ND as a child and during early years of adulthood.

NT during adulthood.

Once I got a sufficiently good grasp of the social rules myself it actually became more difficult to talk to NDs.

I disagree with this. There is such a thing as true confidence, and imo it mostly comes from the knowledge that whatever happens you'll be able to handle the right way. "Fake it til you make it" confidence is called arrogance (and will never turn into actual confidence).

The piers and concourses of each hall are connected so that it is possible, on both sides of security or border inspection, to walk between piers and halls, although border control separates Schengen from non-Schengen areas.

https://en.m.wikipedia.org/wiki/Amsterdam_Airport_Schiphol

Let me clarify. Not keeping departures and arrivals segregated is a Schengen thing. Gates/terminals handling non-Schengen routes need to keep arrivaling and departing passengers separated from each other. When a gate/terminal only handles Schengen (or other common travel area) flights, they are allowed (but not obligated) to not have this separation in place.

unlike the Netherlands the UK does not allow arriving and departing passengers to cross paths

That's a Schengen thing. You'll find the same in Ireland :)