As of June 15, 2021, 93% of the COVID cases at USAFA have been people who were unvaccinated. Leadership is taking COVID serious because they don't want to shut down the school again. Mandatory vaccination is imminent military members that are not vaccinated, should get vaccinated on their own accord before the military forces them to. If cases continue to rise at USAFA, it could restrict unvaccinated cadets to campus and college athletes who are not vaccinated would not be able to travel to compete.
It is logic and common sense that the vaccine works. Yes, there are breakthrough cases where those who have been vaccinated get COVID. But those breakthrough cases are only a small percentage of the actual vaccinated population. The probability of having a negative reaction to the vaccine is astronomically less than the probability of being unvaccinated and contracting COVID. If you think, "it's fine if I get COVID. I'm young and I can fight it off", you're wrong. There have been cadets who contracted COVID and while they fought the virus off, it still damaged their lungs and they had a hard time breathing during physical conditioning. They were medically discharged. This virus is serious and the only way to fight a virus is to get vaccinated. Do your part. Get vaccinated. As the Air Force's core value says, "Service before Self".