My experience in Italy was rather one of anyone and everyone going up to recieve communion … except for the americans, they waited until the chaos was ended and then went very orderly row by row …
In Mexico and Guatemala, they go “in procession” but not row by row …front to back … people just stand up and get in the procession when ever they desire, early in the communion or late, from the front, rear, side or middle …
And we experienced a Mass in St Peter’s with 50,000 of our closest catholic friends and family in 2000 for the Jubilee year … amazing … not exactly 100% orderly but not chaos either, like most of the masses we’ve attended over seas … lineups for communion [that part is orderly

] the when to get in line … and who moves when … that is where the questions lie
I think this is a cultural thing and it transpires the “Comunion line” … watching the driving in Italy … the least obedient to the traffic laws Amrican is more respectful of traffic control devices than the best Italian driver …
I read some stastics on tax compliance and the United States had the most compliant citizens by far then other countries… Somethining about the consent of the governed … Americans are ver willing to submit to rules and rgulations on a voluntary basis for the most part … it is what makes our transitions of politcal power work

and what saves us from some of the total descents into chaos that even some European Countries fall victim to at times …
Of course, we Amricans have our moments of riots in the streets and lawlessness

… I am speaking generalizations here … but these were some observations my DH and I made when traveling abroad