I think the issue is the sheer number of expected old unwell people making it hard to differentiate who will be worst affected.
Of course but you can also divide the resource. Borderline cases will always be difficult.
Edit; also can get too bogged down in search of perfection over just better.
@GoatandTricycle started
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I think the issue is the sheer number of expected old unwell people making it hard to differentiate who will be worst affected.