Here where I live, the so-called petite departments carry a very small inventory of "old women tourists from Florida" clothing that I refuse to wear. I call it that because I grew up in Florida and know from whence I speak.
Because of this, I shop online where the selection is much better. If the department stores ever want me to darken their doors again, they need to listen up. My message to retailers is:
There are plenty of petite women in the U.S. and all over the world who want to wear stylish clothing. The stuff you're displaying at the local malls is not stylish. I'd love to be able to go in a dressing room and try the clothing on before buying it; but, alas, there's nothing at the mall that I even want to take to the dressing room, much less try on.
For some idiotic reason, the very same department stores who have practically non-existent petite departments at the mall have a wide assortment of petite clothing on their websites. So, like it or not, I have to order my clothing online and hope it fits.