Thinking along these same lines... possibly physical education classes in schools could encourage students to recognize that various body structures may lend themselves to excellence in different areas... tall kids may be more inclined to excel at basketball... having short/petite kids receive lower grades because they cannot successfully compete against tall kids is absurd, and may penalize kids for genetic factors over which they have no control.
Similarly, not all kids will run the mile swiftly, but may be great dancers or have superior hand-eye coordination. The key to encouraging kids to enjoy lifelong fitness is to help them find and accept their strengths.
Same underlying principle applies academically. No one should feel bad because they need higher math or lower reading. The endgoal should ideally be helping everyone find their strengths.