The football team also has a heavy selection bias. Personally, I got into CS because there was a required intro class at my undergrad. A dedicated and charisma

The football team also has a heavy selection bias. Personally, I got into CS because there was a required intro class at my undergrad. A dedicated and charismatic professor noticed my aptitude and encouraged me to take the next course and consider a CS major. This could easily have happened in high school if my high school had a required CS course.