Recent changes to EES system have been a disaster, and as op has pointed out, people do have to scan their biometrics more than once coming from a non-EU country. In some cases even if you are a EU resident in case the airport has no specific queues.
How ?
> People do have to scan their biometrics more than once coming from a non-EU country.
If the data hasn't had time to propagate then it's just a flag that you need to do it.
> In some cases even if you are a EU resident in case the airport has no specific queues.
Yes, if I arrive in Firenze airport there is maybe 2 people working on the border, if I'm in the Schengen, I don't even need to be checked. I'm not sure what you're talking about.
> People without EU citizenship also enter EU.
Clearly I'm not talking about these cases. You're not from the EU, you need to follow the rules. Sorry.
And then again at DUB outbound (US pre-clearance, so the normal Global Entry kiosk).
All of this was expected. The only thing that surprise me was there was no passport check or any other custom/immigration at Dublin on the inbound leg. We just walked from the arrival gate to the departure gate and that was that.
Pre clearance from the US means nothing for Ireland, it's also not Schengen.
> The only thing that surprise me was there was no passport check or any other custom/immigration at Dublin on the inbound leg.
Because you've done it on your outbound. Ireland is also a bit more relaxed, but at the same time they can randomely ask you for your papers.
> from the arrival gate to the departure gate
If you don't pass the control, if I'm not wrong you'll never need to be rechecked. The only place it has happened to me within EU was between Ireland -> Germany -> Greece. Probably because Ireland isn't Schengen
I once needed an actual stamp in my passport, and the agent literally apologized to me for taking up the space. I thought she might be messing with me, but not, entirely serious.
Not much of a hassle at airports due to the availability of self-service kiosks, somewhat of a hassle when crossing with a car, and infuriatingly annoying when using a mass transit option like a bus or a train where everyone has to step outside and wait in line to do that, adding about 20-30 minutes to the border crossing.
They printed four of my fingers the first time (presumably for "collecting") and the same four fingers the second time (presumably for "verifying"), so it was the same procedure, taking the same time. Taking a picture of me also took the same time in both cases (I had to position myself in the frame "just right".)
With that, it should take the same time "collecting" from X people as it would "verifying" X people, and so the ratio of "first-time" visitors is irrelevant.