Originally Posted by
PilotLZ
The logic is that once you cross the border you become someone else's problem. The self-isolation is meant to "protect" the population of the UK, not that of France.
Exactly.
There's a plain man's guide to the rules here:
How the rules requiring 14 days of self-isolation for arrivals to Britain work, but here's the relevant extract:
Is there any way to shorten the two weeks in self-isolation?
The only way legally to end the 14 days of quarantine is to leave the country again.
You could, for example, go on a city break to Rome, return for a few days of self-isolation, then take a holiday to Portugal, Croatia or another destination that is welcoming British travellers.
You would need to begin a fresh round of two weeks of quarantine on your return.