Not quite what was said.Just announced the booster rollout will be opened up to over 40s and 16-17 year olds will now be offered a 2nd dose: https://www.bbc.co.uk/news/health-59289008
What was said was: "All over-40s should be offered a third dose of a Covid vaccine, according to the government's vaccination advisers."
And: "The Joint Committee on Vaccination and Immunisation also said 16- and 17-year-olds, initially offered only a single dose, should now receive a second."
Only recommendations at this point.