@Sonnenscheins
They should be doing universities too, especially those students living in halls/flats of up to 20 sharing a kitchen where covid will spread like wildfire.
Most of them have probably already had it. That's the benefit of huge halls of residences - the virus transmission is very efficient. My dc at Uni tells me that almost everyone they know has had it. Many with very mild or no symptoms.
Maybe that's why rates among that age group are starting to come down again?
At my son's Uni, they've had less than 500 positive cases from nearly 20,000 students/staff. So I think it's highly unlikely that most have had it. Maybe that's because most are in halls/flats of only 8 people and the communal kitchens are tiny, with just a small table and 4 chairs, so the flatmates aren't actually socialising with each other much at all.
Some unis have much larger halls/flats (12,14, 20, common), meaning larger kitchens, some with sofas/tvs etc., so there'll be more chances of covid being passed around the flat if they've somewhere to hang out other than their bedrooms.
I think it would be a very foolish mistake to think that most Uni students have had covid and therefore they don't need to be part of a testing system, and are safe to travel etc. They're all in one place on campus, or close to it, so it would be very easy to get them all tested.