There are only about 260k as of Monday's numbers released yesterday people in the 70+ yet to receive a first dose (8.91% of the population in that age range) and some of those will sadly be anti-vaxxers. The numbers in the 60-69 age group may be larger, I guess. Considering we'll be getting 11 million vaccine doses each month for the next few months or so the number of over 70s that will get Pfizer that weren't previously eligible for it is not a huge number in the scheme of things.