I've done a lot of thinking about the reasons why it's so much harder to get a vaccine in certain places than others, here is my current thinking:
1) Roughly speaking, people can divided into three groups:
A) "really want a vaccine right away will get it at first chance";
B) "will get a vaccine but not in a big rush" and
C) "will not get vaccinated."
2) A lot of us have been primarily focusing on group C to explain why, for example, it seems really easy to get a vaccine in Texas but not in Maryland. Places where there are more anti-vaxxers are going to have more supply for everyone else. But that never really made that much sense to me. We've only vaccinated like 20-30% of the population, how many anti-vaxxers are there? Shouldn't it still be tough to get a vaccine in Texas?
3) What I really think is the reason for the disparity is the Group A/B dynamic. I think a lot of cities and blue states have a high percentage of Group A people, whereas more rural and red places have more Group B people. And that makes sense because . . .
4) People have been living their lives very differently this year. For example, for me the vaccine will be life changing. I used to go to the gym like 3-4 times a week, I haven't been in a year. I haven't seen much of my friends and family in person. I haven't been able to date nearly as much. I haven't been to an indoor restaurant or bar all year. So of course I'm in Group A -- there are huge rewards for me as soon as I'm vaccinated (even besides the not-getting-COVID part), By contrast, it sounds like in some places life hasn't really even been all that different. If you've been living your life pretty normally for the last year, there's a lot less urgency to get the shot. You're not going to make any special effort to get it right away.