I find this new rule very strange, the variant is already all over Europeand the US. The UK was just good at catching the variant by genome where everyone else is too busy and playing catch up and its the UK getting crucified for it.

Also why wait till 11th Jan? Makes no sense at all but perhaps they do not want a repeat of what happned in Switzerland when over 200 UK holiday makes after arriving were told they had to stay in their rooms for 10 days and 200 decided to leave in the middle of the night.

I do not understand the 20 person limit either, perhaps thay have had 20 people with the virus come through the borders already???