[mfDjB]

To quote your post: "Nope, December was pretty free and easy (comparatively speaking) and Christmas Day was not a lockdown"

For people living in London, Christmas Day was indeed a lockdown.

[simonbarker87]

I saw plenty of pictures shared by families meeting in London on Christmas Day so perhaps the OP should have put “this is a consequence of people breaking the restrictions on Christmas Day” caused by wilfully ignoring the rules or confusion.