The UK virus variant is all over the place.
33% in March, is it not acceptable to suggest that in 4 months we will approach 80%?
If take up in younger age groups is similar to what has happened so far, we will have far more than 80% of adults vaccinated in a few months time.
I'm sceptical the government will meet the target of offering all adults a jab by the end of July, but by early autumn at the latest I'd say we will have got to that point.