Perhaps a sample of names from more affluent suburbs -vs- more rough suburbs might give a similar result.
WOAH!!! So if it's not an affluent suburb it's rough???

Among my recently delivered friends, we have Agnes (Aggie), Emma, Harold (Harry), Ryan, Kate, Caroline and come to think of it...not one ******, ***********, ********-***, ****** or ******-****** (all omitted to save feelings!). Perhaps it says a lot for the social circles I travel in. I won't make any apologies for it.
I have an Ashleigh, Sarah, Mitchell and Jack...all very "ordinary" names. I certainly don't come from an affluent area, and obviously don't travel in your type of "social circles" and I think I just may be very happy about that!