We get to be careful when we are agreeing to the word “prioritizing” – it might mean encouraging/making more available OR it might mean cutting off other people.
It sounds like a positive word – who would not want to “prioritize” someone disadvantage, and then the government person who is afraid of being blamed will simply not vaccinate anyone until he found everyone in the previous group, registered them, convinced everyone who does not want to take a vaccine.
Also, when they give you a nice-sounding list of priorities, they might interpret it as each item in the list is a hard priority before next. So, “medical, essential, elderly” might be interpreted as every last admin in the hospital first, then every last college admin, before they give it to anyone over 80….
We need lawyers to talk to our own government