you can work it out roughly now whats going to happen this year and it aint good im afraid, so first off its very likely that it will be compulsory whether we like it or not that before you travel on an aircraft you will require the jab, other countries would require this anyway. Its going to take until at least easter before the over 60/70/80s, the vulnerable and key workers are jabbed, then it would appear that this group of people will be first priority again for the second jab which makes sense so you can add another 2 or 3 months on so by the time this group have all had the jab we are talking mid summer. This means that everyone under the age of 60 will not be able to travel until at least late summer, aug, sept time, and all this is based on the government successfully delivering the jab and the virus levels to drop and no mutant ninja variants as I call them to form.
On delivering the jab quickly I say contact every retired dr, nurse and all other ex hospital and surgery staff that have experience and a clean record and go door to door delivering the jab, at the end of the day where is everyone suppose to be during a lockdown, at home! Of course vaccine levels need to be there to do this.