I think she IBU, for the record.
She wants to have her parents over for Christmas because they've previously formed a childcare support bubble. Parents pick up her son one day a week. Both families in neighbouring tier 4 boroughs.
Neither family have been isolating this last week since school finished.
Her parents are almost 80.
Guidance is utterly muddy but from what I can tell, pre existing childcare bubbles can exist over Christmas for the purpose of childcare only, where no other reasonable option exists.
So as not to drip feed, this isn't me sticking my beak in, it's family... we'd all collectively taken the decision to abandon Christmas bubble before tier 4 restrictions came in, but they seek to want to bend the rules. We will stay alone as I thought is expected of us in tier 4.
Who IBU?