My great-grandfather...an introvert, yes comes from a wealthy land-owning, wine-making family in the northern province of Alessandria...while my great-grandmother, an extrovert, came from a poor family in Rome. They met when my grandmother became a maid in my grandfather's household's kitchen.
My grandfather always said that the reason they decided to move to America was because he had been disowned for not having married the woman his mother and 'the 7 Streghe' (his 7 older sisters) had arranged for him to marry...but married whom he loved that just so happened to be Roman and a kitchen-hand.
While my grandmother said it was due to his gambling haha.
Either way...my northern/introverted grandfather...some sort of IxxJ...was the one with wild, risk-taking, more ESFP-like behavior. They did live in Napoli for ten years prior to finally setting off for the US while my grandfather had gone back and forth looking for good wine country...so maybe they were all influenced (all the children they had during this time.) ESFP makes a lot of sense to me though not so much with regards to individual behavior but with the overarching values of my family and basically every Italian I've ever encountered. You mentioned Fe...but all I can see is Fi x infinity being one of the most Individualistic cultures/nations ever. The unit is the individual. And everyone's opinion will be heard (no one's not speaking-up in an effort to preserve harmony haha.)
I don't remember all the places I've been in Italy ...but I don't see myself as an individual that would be a good candidate for detecting regional MBTI differences anyway. Being raised in a culture that has deep Scandanavian roots has been more challenging on me than I imagine anyone would guess. The most introverted Italian person would seem like a raging ESFP compared to people here. The only feeling I truly experience when interacting with people all throughout Italy is this overwhelming sense of joy and freedom thinking *there's nothing I can do that will fuck things up*