I've said before that you are far too optimistic, and I'll stick by that.
I (late 50's) probably won't get the first vaccine until late March, the second mid-April, so early May is the earliest I'll be trusting anything, if I don't get it in the mean time, which I intend to do my very best to avoid.
That's effectively out of my hands, as my missus works in a busy dentist 3 days a week, and I still have to go into a very poorly ventilated (underground), and not very well socially distanced office, full of younger (and in some cases irresponsible) people who travel from all over the country to work for 7 days at a time.
Whitty will keep the breaks on if he can, I'm not convinced he'll be able too, largely because of views like yours, and much worse, that we need to open ASAP, we do, but ASAP to me is later than yours.
We've rushed before, but never to do the right thing like "close down", every time we have rushed to open up it's made matters worse eventually, not trying to pick an argument, just trying to stay realistic, we should all stay realistic, but each to their own I guess.