Comment by JohnsonB

Because the metric is excellence. Realistically, you can't expect a 14 year old to produce something of the quality from someone with a decade more experience, all else being equal. But if they can produce something that is uncommonly ahead of your time, then you have a case for showing it off based on that fact, and it benefits the community to reward skill as early as possible and give people the opportunities that "fame" affords.