@booandbumpp
I don’t think there’s a good answer here. However, around 1m under 60s were advised to shield. Over 60s were over represented in the shielding population and as the majority of over 60s don’t work it would be relatively easy to protect them.
The c1m under 60s are more difficult. Around two thirds of the work force worked from home in April. So probably a majority of shielded people and their households could have worked from home particularly if they were prioritised for it. Some would have been furloughed so presumably they weren’t key to the functioning of society. Some shielded people will be living alone (and although they may need to work presumably they didn’t from March to August this year anyway). That leaves a significant number of households with a shielded person where at least one person needed to go to work in person but I think we’re looking at max 200-300k. Some but not all of those will have jobs which are critical to society.
I’d suggest that what we should have done is a furlough for households where someone was advised to shield (if people can’t work from home) and maternity leave style protection of employment until people are released from shielding).
These figures are rough but mostly based on ons stats.
This would have meant losing some additional critical key workers from the workforce for a time (but we lost those shielding from the workforce anyway for months). You might have been able to mitigate the effect of this in some sectors e.g wife of shielded person is a doctor. Wife asked to continue working throughout but offered some combination of regular testing, lower risk work e.g providing care to shielded, enhanced payment to cover separate accommodation if desired.
That isn’t a perfect system and in honesty would probably have resulted in more vulnerable people being infected but, as I see it, the alternative is millions in long term unemployment which shortens lives and no money for public spending plus on off lockdowns for over a year which doesn’t solve the underlying problem.
It’s not that I think that shielding the vulnerable is a great approach so much as that the alternative which we are doing is worse.
Usually we value one quality adjusted life year at around c. £60k in the Uk. For covid we are spending much much more than that to save a year of life and probably shortening many other lives in the process. It sounds sociopathic to think of lives in monetary terms but we have always done it and when resources are limited you have to.
If cases really did double every 7 days we would have hit some level of herd immunity very quickly from a starting point of 100k a day. I suspect we wouldn’t have seen that level of growth for very long though as even worst hit countries haven’t.