It takes a lot of thought and research to come up with a good opinion on some subjects. Some subjects are easy because of values, but you need a lot of study to understand other subjects.

You need to have an opinion on things you don’t understand. There are people for and against vaccines - this is a very complex subject and both sides have what sounds like science behind them, and both also have real medical doctors. You are affected though so you better get to the bottom of it as both sides will tell you the wrong choice is a disaster.