EconButlerSnow, these questions massively concern me, but it's really not easy to find clear information about what happened last year: from other threads on this forum, the situation has varied even between different Oxbridge colleges.
In real life, I know of students at the same university whose experiences (different faculties, different halls of residence) varied between fairly good, in the circumstances, and absolutely awful.
Some universities that handled aspects of the pandemic badly might have learned from the experience and be better prepared this year. Seriously - how can we know what's going to happen?
I'm not necessarily clamouring for lectures with 500 students. But I would like to know my sons will be getting some f2f teaching in their humanities subjects, unless the country has to have another full lockdown. It's happening in schools now, with mitigations (well, masks and open windows, and distancing where A level groups are sufficiently small); I don't see why this isn't possible at universities too.
The websites of the universities my sons have offers from are still talking about blended learning for 2021/2, but that could mean anything
.
So what would you advise, EconButlerSnow? I don't mean that to sound combative, but I genuinely don't know what to advise my children, especially as their starting point is a refusal even to countenance a year out.