This is really frustrating to me, I also got vaccinated at that clinic through the same mechanism - I live in the complex on the street a block away and perpendicular.

I also had people complain at me, and I had to patiently ask them, "would you rather the doses expire"? It's really frustrating but I understand the confusion and also the general feeling of "unfairness", as everyone right-thinking is eager to get vaccinated if possible.

When I was a child I remember going to food banks. I remember the food bank having no eligibility checks whatsoever.

I also remember a few rich people going there just to take advantage of it, and I remember days where we were so far back in line that we got nothing while the rich people walked out happily.

That vaccination site isn't any different. Those vaccines were intended for poor, underdocumented, at risk populations. Your vaccination saved one life (yours), but cost many more. It's not any different from the days I went hungry due to egoists like you.

Nowadays, I'm obviously in a different situation, but I still can't stand people with this "fuck you, got mine" mindset.

Apparently lots of vaccination sites were indeed different.

Your food bank analogy would work if they were serving fresh food and could not give it all away, so invited any and all to come and eat. Which was the situation at many vaccination sites. Doses were going to waste if people did not use them. And when not enough people in the designated groups were showing up or making appointments at some sites, everyone was encouraged to come so the shots did not go to waste. That so many showed up after the general call for people is a marker of success. Not the one intended for initially, but better than shots going to waste.