Al-Qadik is part of the Forgotten Realms, per WotC.
And, yes, absolutely. I remember Mike Mearls said way-back that people.will dabble with playing different Classes, bit tend to stick with a particular species acroas the board whether Human or Elf or Gnome.
I also let them know that I haven't spent a single $ on 5e products since the Spelljammer debacle, and that I hate the 3 book setting format, and that they aren't putting in enough setting content into their settings. Fun times!