They never did.
People want certainty, which is why we have habits and rituals, why there are schedules and insurance companies and more conservatives than liberals.
And why there's always a turning away from doubting to religion and magic, which share the warm assurance of permanence.
People resent the rigour of science, fear its innovations, and have no time for its restless searching. It may be confusion after everything we learned about it at school, but more likely it's the way we grow up to be.
There's no certainty in Nature, or in life. It leads a chosen few to be happy questioning, while others come to see the point, or somehow knew it from the first, from a sense of history.
