Statistically, COVID threat to 18-25 year olds is minimal and probably on the same order as alcohol poisoning on campuses.
The leading cause of outbreaks in China are Chinese college students returning from the USA. Without that, there would be virtually no deaths happening now in China.
There is no way that the world will open up to us while we are spewing disease out of our colleges. It will also create a toxic disease zone around most of our cutting edge medical resources.