Since the establishment of the Dragon Academy to this day, there have indeed been many successful cases. Some ancestral dragons have emerged, and these ancestral return dragons have naturally become the signature and benchmark of the Dragon Academy, attracting more Metallic Dragon Race members to send their offspring here.
Although the probability of ancestral return is extremely low, what if it's their own child? Even taking ten thousand steps back, even if there isn't an ancestral return, with the Dragon Academy's education system and environment, the dragons that come out of it, whether in vision, combat, or survival skills, are much stronger than those wild dragons raised freely outside.
This is an absolutely no-loss, sure-win deal. Moreover, by sending their offspring to the Dragon Academy, adult dragons, who are supposed to fulfill their nurturing obligations, don't have to stay by the nest anymore and can roam freely.