What about quiz bowl teams or mock trial teams? No one, besides maybe three or four parents are present at such competitions. If schools are going to have a policy that teachers must attend sporting events, then there needs to be a similar policy that states that teachers must also attend academic competitions.
As you see, this policy is never going to work as it singles out athletics, which is not the heart of a school or should not be the heart of the school. As a teacher, I want the school’s athletic program to do well and to be a state contender in each sport, but truly, academics come first.