There is no such thing as a 'perfect system'.
Vaccinating the biggest percentage of the population who are likely to die first (80% of which are in the older age groups 70+) makes good sense to me.
Arguments about who to vaccinate next are going to persist until they've injected a lot more of the population, regardless of age group.
Everybody who wants a vaccine is clamouring for one yesterday!
Thing is, we're not going to be allowed to go very far or do very much for a while yet, so it's still the same old patience, patience, patience message.
And as for vaccinating "druggies" and "lowlifes" (!) there is very good reason - they're the ones most likely to be super-spreaders, infecting more people, ergo putting more pressure on the health services, imo.
Whatever decision is made about vaccines, it will be damned if they do and damned if they don't.
Don't forget the virus affects the whole world, not just us and our little self-centred lives.
There won't be any getting it under any sort of control until a lot more of the world's population have also been vaccinated.
So anyone who is straining at the leash to get away for their "holidays" needs to consider how well the vaccination process is going in the destination countries as that could well put the kibosh on any "plans" you might be making down the line.
Holidays?! You should be so lucky! Consider yourself grateful to be alive, kicking and with a future to look forward to, even if you don't know what that is yet.