What the reader sees
An admissions officer forms one impression from the activity list: "this student is ___." If the answer is "a well-rounded kid who does a lot of stuff," the file lands in the middle of the pile. If it's "the student who built a water-sensor network," it rises.
What families should do differently
Every activity added "because it looks good" is actively making the application harder to read. The fix is subtraction: keep what reinforces the student's direction, drop what dilutes it.
How Tafel uses this
Tafel flags low-signal activities and helps the student concentrate time where it produces a recognizable identity.