Hypothetical situation for now (thank God!) but I'm hopefully attending a training course in London next week will be getting a train / bus to the venue for 4 days. Probably travelling up and back every day - maybe 1 overnight in the middle.
If I develop symptoms whilst I'm there, how do I safely get home?? I suppose I could ask DH to drive into London and pick me up but what would you do if you lived alone?? Can you morally take a taxi knowing you could infect the driver? Same for bus / trains?
But what's the alternative?? You have to find and pay for some kind of quarantine accommodation (presumably within walking distance of where you are otherwise all the above issues still apply!) until you get test results??
What would you do??