How come red & purple are on opposite, far ends of the electromagnetic spectrum, but when mixing colors together in kindergarten, purple is halfway between red & blue?

Question

Shouldn’t common sense dictate that either both be one, or both be the other?

In: 1934

Answer 1

I know it’s not the question asked, but I generally accepted pigment color and light don’t act the same considering if you mix all paint colors you get brown while the colors of the light spectrum combine into white light.