why do names differ so much - USA/UK

[Summerbluues]

So just a late night thought and after seeing a post about a girls' name that I think would be totally accepted in the States but not so much here. It seems that across the pond they are much for "daring" with names, like there is more emphasis on trying to find something unique. I just commented on another post how "masculine" names are not all that rare for girls e.g Brynn, Ryan, Jamie.

My sister lives in Chicago and just through having a quick browse at her FB friends list I've found

Kayli
Kristi
Kenzi
Brandi
Tinley (x2)
Dakota
Desiree
Avery (x2)
Adalyn
Ariel (x3)
Westley
Charity
London
Trinidy
Darriyan
Shallise
Shelby
Delaney (x3)
Payton
Brynn/Brynne for a girl x 2
Lark
Raleigh
Logan
Tulley
Maydee
Lincoln (x2)
Tyree
Porter (x2)
Genesis
Braylon
Jett
Kamryn
Reese for a girl (x2)
Hadley (x2)
Brielle
Kennedi
Raina
Landry
Kaelyn
Piper (x4)
Madalyn (obvious Madeleine very common but never seen this spelling before!)
Sharise
Dixie
Presley (x3)
Haeliey
Kylynn
Kodi
Keilah

And those are just the ones that really stood out..it's like I would see those names and know straight away it was someone from the States and not the UK. Why do you think it is that across the pond they are more "out there" with names?

Surname-type names for men were not uncommon in the UK in the nineteenth century, fashions and norms change.

McLaren37 I actually love all those names you listed! Particularly Marlowe and Averly.

Derelict, I know a British 'Sondra' who is in her 40s now.
Also, 'Kadi' looks exactly like it would be pronounced as 'Kay-dee' to me - not caddy at all.

That said, I have irrational hatred for the current trend of what I think of as granny names - Maud etc - they just sound old ladyish to me.
Completely and totally unreasonable and awful of me, I know

Sorry, just realised it was an old thread