as others have already said, you do NOT choose your starting city, it is determined by what class you chose, because all of the various guilds are unique to each town. It was like this in 1.0 never changed so I don't understand how it is stumping you now. And also as others have already said, you leave your starting town an work for all towns between lv15-20 & @ 20 you start working for a grand company (same as 1.0) and at this time you actually choose your allegiance to which city you want