But again, some random stranger banging on the door asking about vaccines isn't likely to get such people into getting a vaccine. That is my point.Yes and no.
Yes, where we've got >85% 1st dose take-up there's little point getting a few percentage points more with the vaccine.
However there's areas (not many) where first dose uptake is low. Where you've got 1:2 or even 1:1 ratios (and there's at least an area in Reading where there's fewer than 50% first doses) going for to door makes sense.
Not that it'll make much difference at a national level. However for those areas or could make a large difference in the local hospitals if they can get it up above 75%.