There is no right answer here. It’s a huge balance and I don’t think anyone, doctor, politician, teacher or whatever can say what the best thing to do is.
We also have to look at the impact of lockdowns and isolating on vulnerable children. What is going on behind closed doors for these children? Domestic violence and others things we know goes up in lockdown. Poverty, lack of food, child abuse, social services stretched beyond belief. Children missing education.
Equally, ‘the vulnerable’ adults should be protected. But actually, lockdowns don’t just protect them, they protect (from a physical health point of view, not mental!) others too, at least in the short term.
It is really, really hard and no one has the answer. We are now pretty much two years on and although we have a vaccine, the numbers are worse than ever.
No idea what will happen, but I don’t believe that in ten years time, we’ll still be testing and isolating for this as a matter of course.