It useless because most of us won't be going into the field of math. Ill be working on computer systems, not programming, for the rest of my life. I won't need trig, calc, or any of that shit. So yes to me it is worthless, to others it isn't.Math is just an extremely exact way of objectively describing reality using a formal logical notation that does not allow for any kind of confusion when it is done correctly.
I fail to see how any rational person would call that useless.