I don't believe Claire was daily testing though she was with her covid pos mum the week before Vi tested pos and was going to the gym and shops even though she was a close contact,she was put out when Vi tested pos because she had plans and resented the fact she couldn't stick to them.My husband would tell me to F off if I told him he couldn't have something to eat that he fancied
I'm sure Vi was back at school when they went to Costco because she wouldn't have left her on her own in the house while they left the farm. Plus the rules were you don't need to isolate if someone in your house has covid, as long as you're negative. So she done nothing wrong in that aspect.