Now sure why this is that terribly outlandish or ridiculous of a request when, like you said, you already can basically get this anyway. I mean ranged physical dps classes have what's basically a permanent sprint out of combat already. The only reason I'm in favor of not just letting us mount in cities is because it'd make talking to NPCs more annoying than it already is with SEs wonky NPC load priorities (and yes I liberally use the keybind to target/interact with the nearest non player). Just implement it as a toggle or something /shrug