There isn’t one. We have never forced MMR we have never forced flu vaccines. You encourage take up not force. Democratic societies don’t force or then victimise those concerned about it
But then certain people (not you, tbf) said don't get a train to work if I'm bothered about people not wearing masks on it. Now, surely this is an extension of that? Don't want a vaccine? Don't go to an event.
And isn't it just an extension of this?
In some areas of bolton 1 in 4 have refused the vaccine. Individual lock down of communities who refuse to behave responsibly may be an option
Effectively you're asking people to lockdown, if they're not behaving responsibly...
Now, the problem with civil liberties, is it's not a right to inflict risk on others by behaving irresponsibly. FWIW, I'm not necessarily comfortable with a vaccine passport for a number of reasons - one being that the %age takeup looks pretty good to be fairly effective, another being, as you've mentioned, there are difficult questions wrt ages etc. However... what I hope people who don't want a vaccine, and also don't want to wear a mask on a train don't do, is then want to restrict *my* liberties by telling me not to go on a train to work, because *they* don't want to behave responsibly.