The issue in the UK isn't just families and lovers: It's also that we rely on cross-channel shipping to keep our supermarket shelves stocked and our businesses operating. 10,000 lorries a day, in peak periods.

And a mere 48-hour disruption had pretty disruptive results [1] - and week-long quarantines simply aren't an option.

[1] https://www.bbc.co.uk/news/business-55389505