[quote weddread]@wintertravel1980 very interesting!
I had assumed that anyone who wants to visit a nightclub was already out in bars, house parties etc and not worried about social distancing / catching it.
I went into Pret today and they have removed every trace of Covid - plastic screens are down, employees not wearing masks etc. Brave move![/quote]
I'd imagine it's the mixing of large groups that is different. Even if you regularly have house parties of 30+ people, they're likely to often be the same 30+ people. Some people might have 2 or more separate friendship groups, like local friends and work colleagues but it's still a set number of social contacts. Nightclubs bring lots of those different social circles into the same venue with mixing between the groups and obviously shouting, dancing, sweat dripping off the ceiling means it's ideal spreading conditions.