>>16842877
>we're better off without them
you can't just throw out an area of mathematics from the top down because you don't like the sound of it, everything in mathematics was invented because it fulfilled some need for someone
imagine someone wants to know the closest integer for any real number and study properties of this procedure, now they can't use a function according to you but sure as hell they will just invent some new construct called a shmunction and carry on just the same