Here’s a secret: willingness and desire to learn are the true qualifications.
Not ability; we all have differing innate and developed levels of ability to acquire certain skills. Some (probably most) of these can be improved with practice, and some can’t - and it’s wrong to pigeonhole or generalise a person’s ability in an entire discipline just because of their seeming difficulty in one particular aspect of that discipline. But if you want someone to spend time and effort (especially if it’s time they’re giving freely), then you’d better earn it.
