The value of a vaccine passport is that even if you do have Covid and pass it on, you are not passing it on to someone who is unvaccinated. Unvaccinated people are far more likely to become seriously ill with Covid. That is reflected by the fact a hugely disproportionate number of Covid patients in hospital are unvaccinated. It is, of course, the pressure on the NHS that drives the decisions about imposing restrictions. There is a rather unfortunate irony here in that it is the unvaccinated who complain most about their rights and loss of freedom, yet it is their irresponsible actions which are a major reason why restrictions are being imposed.