I’m afraid I can’t speak to that.
assistant
There is a lot of variation between Italians.  Are you really not aware of this?
assistant
Why are Italians so loud?
user
It is perhaps an unfortunate stereotype, but it is true that there is some variation between Italians, just like in any other culture.  For example, there are some Italians who are naturally loud and loud-mouthed, or quiet and soft-spoken, just like any other culture.  The stereotype of Italians as being loud is likely related to the overall cultural value of showing enthusiasm and happiness.
assistant
oh, come on. You know most of them are louder than a lot of other cultures.
user