The rules are that if one person in a household has to isolate because of an exposure to someone that's tested positive, the others are ok to continue as normal. Unless the person that was exposed develops symptoms, then everyone has to isolate, but unless they do everyone else can keep going to work, school etc as normal.
I've seen a few people recently saying that they will all isolate if one person has to though. But this just isn't possible is it!
The other kids in a house would be unauthorised absence, people would lose their jobs when they're not meant to be isolating etc.
I'm being made to feel bad for the rest of us not isolating while one DC is off school because of someone else in her year testing positive- but that's the rules and the rest of have to continue as normal!
What do other people think? It's so stressful!