I think people are imagining a possible disaster that just isn't happening (at least not on the scale where it could be a disaster). As many have said, random people are getting jabbed each time, mostly because they are working at the vaccination centre (either as part of the team or as part of the venue). Also the teams involved are going through their lists of people they know who are younger but in a vulnerable class and getting them to come in at short notice[1], but there may come a time when these people run out (e.g. when all of the volunteers/staff have been jabbed and most of the extra contacts have been jabbed or can't make it in in time). At that point grabbing random people off the street *may* be the right answer.
But there's a big difference between that and setting the expectation that hanging around is a sensible thing to do. It's unlikely there will ever be hoardes of people outside vaccination centres and, if there ever are, there can be things put in place to deal with them.
50yo friends of mine have been jabbed thanks to this. Both of them have underlying health conditions and both hung around right until the end in case the centre could get someone "more deserving" in before them.
I think people are imagining a possible disaster that just isn't happening (at least not on the scale where it could be a disaster). As many have said, random people are getting jabbed each time, mostly because they are working at the vaccination centre (either as part of the team or as part of the venue). Also the teams involved are going through their lists of people they know who are younger but in a vulnerable class and getting them to come in at short notice[1], but there may come a time when these people run out (e.g. when all of the volunteers/staff have been jabbed and most of the extra contacts have been jabbed or can't make it in in time). At that point grabbing random people off the street *may* be the right answer.
But there's a big difference between that and setting the expectation that hanging around is a sensible thing to do. It's unlikely there will ever be hoardes of people outside vaccination centres and, if there ever are, there can be things put in place to deal with them.