Well, being a few days after 9/11 most likely had a lot to do with that. But, in Europe, people tend to queue up with no logical pattern, far in advance of a departing flight. They generally do not pay attention to who goes in which line, so you have coach people standing in the priority flyer line. However, my DH has a big mouth (in a nice way), so he just cuts in front of the people, telling them, this line is clearly marked for first class/business/priority. Then, we have a little talk with the gate agent. But, you have to remember, you are in a different culture and this is what they do. However, I only saw pushing/shoving and huge lines going through customs in Milan, about ten years ago, as well as in the UK, the same year. Nothing like that recently. Ever been on a flight to San Juan? It's the same thing, so there is definitely a cultural component, that you just have to deal with. It certainly wouldn't stop me from traveling.
2015 Trek Silque SSL
Specialized Oura
2011 Guru Praemio
Specialized Oura
2017 Specialized Ariel Sport