I don’t think dragons are particularly common were Tev hails from. A generalized lack of interest in civilization, and the fact they’re generally building-sized, means you’re not going to see them walking down the street or at the grocery store.

Of course, “usually” isn’t “never” so Tevruden isn’t even the only dragon in the palace.

Its either the court wizard or the tailor.

We’re nooot quite sure yet