> It's as if more educated people were more likely to have made up their minds from the start.

I wonder if it's because a larger portion of the less-educated people were hesitant due to fear, and that was relieved over time (seeing friends and family get it, seeing celebrities get it, etc).

The more-educated people on the other hand may have come to their conclusion after studying the available facts and deciding that a wait-and-see approach would be better. This would therefore suggest that not enough new information/data has be released yet to change their mind (although this might change soon with more countries hitting high vax levels and opening up).