<p>There is a famous quote “A question that sometimes drives me hazy: am I or are the others crazy? – Albert Einstein”.
I don’t know but it seems people forget that Newton’s laws of motions are explained by calculus and they are the back bone of everyday actions/reactions.
From any mathematical modeling used in stock market to medical equipment producing the mapping of human bodies stem from applications of Calculus.
The computers that render graphics for you to look at the digital photographs to anything visual stunning has its basis in calculus.
Please it is true not everyone can understand Calculus and not everyone need to do it also. But if it was not there most of the things you are able to do and use won’t exists.</p>