Or, introverts are more likely to read rather than take advice from the loud guy at the end of the bar. I have had every vaccination I could, because I grew up

Or, introverts are more likely to read rather than take advice from the loud guy at the end of the bar. I have had every vaccination I could, because I grew up in a country where they really meant something. Ever seen measles in person? You will be running to get every COVID shot you can once you've seen such things. In my observation, people with wide international backgrounds trend away from extroversion.