I feel like as an adult we don't use math nearly enough in our day as everyday humans to keep up with some of the finer points of math. Like I have almost forgotten almost everything I learned in calculus classes. Mostly because I never use the stuff. I am sure if I jogged my memory I would remember but its scary to realize that your brain will throw away shit you don't use. Even though I remember the pain of learning it in the first place.

Are some math skills just not needed anymore?