Have seen a few posts about having Christmas Day with people that are most at risk, might be their last Christmas etc.
Can I just say that whilst I totally understand the sentiment behind it - if they are in those groups (esp shielding), they will be more than likely undergoing regular treatment/appointments alongside similar people. That means that whilst they might be happy to take the risk, it might also have a knock on effect on others having treatment alongside them.
Just a thought....