[badpun]

People don't start at being average. Average is (by definition) where majority of developers arrive at after years in the industry.

Also, it's perfectly fine to aim at being average - one may be aware of various limitations (health, intelligence, memory, ADHD and similar disorders, family situation) that will likely limit them to being average at best. If they aim for being a star despite those limitations, they risk burning out and getting nowhere.