There's a difference between those who are being invited to have their vaccines, and those who book through the NHS website where you can self refer. Those self referring will be subject to questions to confirm eligibility. As an example, a family friend has booked under the "carer" criteria because they do an online shop for their mum. However, the official criteria is that you must be a registered carer, or in receipt of a carers allowance (which can only be given for those who "care" for 35 hours per week). Now she may blag her way in tonight, but it's highly likely that she will be asked to evidence her carer credentials - and I hope she is as she's blocking someone far more needy.