I'm currently a student at a big university, 200 cases so far, another 160 at a different university and students I chat to online say the published numbers aren't even 1/4 of the actual cases. A few have been quite ill with it, in bed for a week etc.
However, I have always thought these young people are better off in halls, where to a certain extent uni's can control their behaviour. They cannot particularly stop the students being in contact with the wider community, but realistically not many have part time jobs yet, they are being controlled when they should be isolating, tested regularly (moreso than if they were in family homes) and many aren't leaving campus. The SU building is open and staffed by students and local shops and bars etc tend to be staffed by students and I imagine, avoided by locals. So they are in effect in their own community. Obviously there are staff and lecturers. I have 4 online sessions a week and 1 f2f tutorial that lasts 45 mins in a large well ventilated room with recorded seat numbers etc.
I can't help but think they are being used as Guinea pigs and were deliberately sent back to protect the wider population and to track how it spreads in closed communities. But do believe its the best place they can be if they are mentally robust enough to deal with it all.