In Spain too, it’s also needed in vocational training (FP1, FP2) for carpenters, electricians, plumbers, etc., because it involves necessary calculations in their work, such as trigonometry, spheronometry, vector forces, flow calculations, among others. For office workers, naturally, percentage calculations are not overcome, but even there second degree equations can arise.

That’s nuts. In the US the only high school math I was taught was algebra and geometry. Anything more advanced than that was for students in the “gifted” program. No wonder why Americans are so stupid.