Remathilis
Legend
It is the PCs decision to make the choice. Not mine. I let the players determine if the risk is worth the reward.
But, here's the thing: In a world where that dragon exists, the players get to decide what challenges to face. They not only get to decide if "fight the dragon" is a challenge they can face, they get to decide if "talk to the dragon", "serve the dragon", "convince the dragon", and "use the dragon as basis of scams" are challenges they can face. They can make an illusion of a dragon that is credible to NPCs because the NPCs know there is a dragon. They can, frankly, come up with thousands of other, better, ideas than the ones I have outlined here.
Ok, Cadfan I have just one question... what if the PC's find a way to defeat the dragon? Seriously what if they are ingenuous enough to pull it off without going head to head with the creature...does it change your position? Or what if the player's believe they are, even after all their research... how does it become a non-choice?
Wow. I don't know if its generational, editional, or something they put in the water up here, but I don't know a single player (and I've played with countless at this point) who, knowing that the dragon between towns was powerful (and via metagaming would equate that to beyond their scope to handle) would even bother to touch it, let alone attack it.