He was still just a juvenile dragon that had yet to reach maturity, with stages like adolescence and young adulthood ahead of him before reaching full adulthood. After that, there were even older age segments like ancient, more ancient, and primeval.
All these stages differed in body size and rank.
For a reason not unfounded, giant dragons have always been at the very top of the food chain since time immemorial.
If it weren't for the rise of the Giant Empire, which waged a prolonged war against the giant dragons.
If not for the Ancient Elves who sacrificed a great many Supreme Mages to construct the Dragon Madness Locks that caused the dragons to go into a frenzied state intermittently, synchronized with the appearance of Regicide Star.
Without these, the continent might still be devoid of other races' involvement, remaining a backyard, a hunting ground for the giant dragons.