If Herag had remained in Silver Moon City and continued to develop according to past trajectories, he would likely have obtained this knowledge.
Given his displayed excellence, it was enough to attract Parker's attention, and these resources would undoubtedly be abundant, ensuring significant nurturing.
This is evident from the three Keys of Rules that Pries presented.
Even though Parker was already severely injured, he still valued Herag greatly and did not unfairly treat him.
However, Parker himself was deeply mired in difficulties and unable to extricate himself, leaving his assistance to Herag rather limited.
Those three Keys of Rules were actually somewhat overstepping boundaries, at least not obtained through proper means.
Herag was very grateful to Parker and Pries and did not ask for more.
If he hadn't been unable to stay in Silver Moon City, he wouldn't have left for the Elf Plane.
