Americans should drop their know-it-all attitude about Italy and Italian.
Most of Italian immigrants in the US were very poor people from rural areas in the South, with no mannerism, no Italian and cooked local dishes only. Stop think that Italy is like the grand-grand-nephew of a Sicilian farmer told you.
We do eat with fork & knife, is table mannerism. Even for pizza. Children are allowed to eat pizza with their hands, and I do it when I am at home among close friends. But that's it.
Watching the Sopranos made me realize how far Italian-Americans are from Italians. If you watched the episode based in Naples, you know what I mean.