Why was the drive against smoking in public places carried out overnight?

Was Iran’s leaders’ false assumption that President Trump would follow the actions and decisions of his Democratic predecessors proved to be regrettable and unfounded once he assumed the presidency?
Why do similar circumstances seem to lead to similar outcomes? Is there a scientific explanation, or is it just a pattern our brains like to see?
What experiences might lead someone to criticize their former religion with mockery or exaggerations instead of just stating their reasons for leaving?