Traits and impact…
A Dog can be taught to respond to your sign. A human can be taught to compute the Nth degree integral. Subject to intellectual capacity, you can teach any skill to anybody.
Putting that skill to use, to create impact, however, is a factor of traits that are innate and unique to individuals.
Passion cannot be taught. Responsibility cannot be taught. Desire to succeed cannot be taught. Ability to conquer physical limitations and emotional needs in the greater interest of maximizing ones overall being, cannot be taught.
All these are individual decisions. They must be assumed.
Nature has left the ability to create impact to you. So few of us care to string our life on the chords of positive traits! Pity!