The cabinet’s decision to approve the Covid-19 vaccination of 18-year-olds may have lifted the spirits of some younger people. In truth it is a sign of serious problems in the vaccination programme. Daily jabs have slumped far below the 300,000 per day target. More than half of over-60s have had full or partial vaccination, but the upward momentum has gone. As the government dropped through the age ranges, fresh take-up was disappointing...