If someone wants to compete for 10 straight years while they do undergrad and their PhD, I'm alright with that. If a 30-year-old is going back to school and happens to be in great shape they should be able to participate as well. Athletes like Grant Fisher and Jim Walmsley will move onto their pro careers, they won't drag out their eligibility. Otherwise I think college athletics should be open to all as long as they're bona fide students.