The problem is "science is difficult" while "opinion is easy". And "faith is faith' not science.

One can present scientific conclusions such as about global warming and find them countered by vociferous opinion. Or, one can present scientific conclusions about earlier version in the genus "homo" or about even earlier dinosaurs and see them lose when challenged by "faith".

Same for vaccinations.

People make their biggest decisions based on emotions; rather than based on science. It was ever thus and probably will always be so in the future.

[My degree is in science; but much of my life experience is in politics and policy making.]