Not all localities have followed this practice of course, for example: the San Francisco Giants. While there is no indication that "giants" are native to the Bay Area, it is certainly a finer appellation than any that might nonetheless better reflect San Francisco's population, such as the "San Francisco Gay Vegan Atheists".
Just try fitting that on a uniform. And you don't want to think about the logo.
BWAHAHAHAHAHA!
What would the Uniform COLORS be??
San Francisco Gay Vegan Atheists”.
MERCY!