The Walk

I.m trying to digest what the UK ministers are coming away with presently in terms of folk returning to work. The message is confused, and self contradictory. I'm not saying this is easy but this bunch are floundering from one ridiculous pronouncement to another.
Those infants returning to class will need to be well drilled on isolation rules and if you do a car share to get to work keep the windows open and if you get a bus get off one stop early.
The London tube system, in full operation, shifts 2000 commuters per minute. They presently have less trains to get on and have to maintain 2 m separation and of course remain alert.
If they are back on this herd immunity thing again why not just say so?