True, good native and traditional cultutal exceptions of a rule of thumb. Speaking for myself (NL) we have a small amount of Italian names and heritage (also due to Catholicism), and say NYC would have much more Italian descendants.

Also, as someone who saw quite some football (non-US version), I ofcourse am familiar with a lot of names. For example, Andrea Pirlo. We also learn some via history at school, since Italy plays a prominent role in Europe's history. Regarding Nicola, people might be familiar with Nikola Tesla (the 'c' in this case, sounds like 'k') and it is just a variant of 'Nico', 'Nicole', 'Nicolas'. Then there's some dude at FIFA, 'Gianni' which is a variant of 'Jean', 'Jan', 'Jeanne', 'Janet', 'Jannie', 'Janine', etc. I could go on about Gianluigi Buffon...

What I just remind myself with regards to Italian is it tends to add a vowel at end of a word or name, but it often doesn't sound same in English or my native tongue (Dutch).

Around here, all of these would be male with the last vowel removed and female with it.

Andrea (on-dre-ah vs and-ree-ah) is a true name collision.

Michele and Daniele look like misspellings of Michelle and Danielle though. I don't know any women named Daniele or men named Danielle.

Yes, I would assume those are feminine names.

The closest English male names to your examples are Andre/Andrew, Simon, Nicholas/Nick, Michael/Mike, Daniel/Dan. Gianni is John, etc