As the title says I feel that all mounts should be able to fly. Now before you get your panties in a bunch let me explain my reasons I feel this way.
The first reason is due to how swimming was implemented. Since swimming just copy & pasted flying it is locking some mounts from being used that should be able to such as the Elbst and Enbarr.
Second non-flying mounts are next to useless once you start to fly. Right now we have no reason to use many mounts 12 areas because flying is much faster. This is stopping many from using their favorite mounts for the sake of convenience.
Lastly and this is more of a counter to some responses I know are coming. Many are going to say that it doesn't make since for many mounts to fly, BUT we have many mounts that have no reason to fly already such as warsteeds, the t-rex, the tiger, tank mounts, and the elephant. Why is it OK for these to fly and not the others?
I know this will most likely never happen but i just wanted to throw it out there and see how others feel.