Two things are happening here. We don't teach math well, and we teach math wrong.

Every few years, they change math and how it is taught. So that parents cannot help with their children's math homework. Not because of arithmetic itself, but because of the processes.

We have never taught math well. Because the people who love math, do not share a language with the majority that doesn't like math. Math can be fun and easy. But, instead of doing basic algebra and then go into accounting (everyone can use it) they go into trigonometry (most people will never use, except me) and calculus (which isn't useful at all, except to shut up people who might see that math is wrong. I know what it is used for)

So, basically, we should go 'a sprinkling of algebra' and then into bookkeeping and accounting. And so, make sure all know their basic math (and how to balance check book)

And all the other maths, for math nerds, algebra, trigonometry, linear algebra, fourier transforms…

We don't make math fun. (i think this is a conspiracy theory)