I don't know that people are avoiding the use of calculus where it's appropriate. Rather, they believe that they will never encounter a situation where calculus

I don't know that people are avoiding the use of calculus where it's appropriate. Rather, they believe that they will never encounter a situation where calculus is the appropriate tool and thus claim that they don't need to learn it. It's a shame, because understanding differentiation and integration has had a tremendous impact on the way I think. It literally was a gamechanger for me, and it's worth it even though I only use it in thought exercises now.