Academic staff are hiding at home doing online lectures so they're all right Jack
I'm not, I'm on campus doing face to face (well, mask to mask) lectures and so are many of my colleagues, as well as online teaching.
Some staff, rightly in my opinion, are at home teaching online because they are shielding because they are older or they have a pre-existing condition, They don't have the same risk as your 18 year old of getting covid! Also, some areas in lockdown and some in London are fully online which again, reflects their higher rates of covid. Thousands of us are still teaching on campus!
That's what we should be doing- seeing which groups aren't as at risk of serious illness or death (and there are some students that will be and we encourage online teaching for them too), and then letting those at lower risk back onto campus as long as it's shown transmission isn't occurring there.