Actual data - nowhere near the numbers in hospital you'd expect from the case numbers a few weeks ago, even ignoring age
Unless the hospital cases then were biased more towards with covid, particularly if they were young people in for minor accidents etc. as those individuals would likely be leaving quickly and be irrelevant for covid terms. With more routine admissions and A&E admissions likely dropping, and older people infected I think there's a good chance that pattern won't follow through - the distinction on the admittance stats would be useful again.
Personally I think all uni students should go home and do online teaching unless they are on a practical course
University students are home, they are in a household at university, whilst I of course agree with you in many ways, it's only because I don't believe in the evidence for the restriction anyway, but if you accept the evidence exists, and that's why we have the rule on households not mixing then university students need to remain in their current household.
As to what they'll do - the same as everyone else, there's nothing special about university students!