Most Baldurian choices I have seen were related to Wyll.
At best you can ignore them and pick other options.
I guess it was planned to offer a selection of tags for custom characters but that got scrapped at some point so everyone is from Baldurs Gate.
As BG is one if the largest cities in the world it is not that unbelievable, but it still would have been nice if there had been other ootions for more exotic race/class combinations.
