Why don't they understand physics?

A rainbow is a fairly simple physical concept. As light passes through water droplets it is refracted and reflected and emerges split into the band of colours we recognize as a rainbow.

The rainbow has red on one edge and violet on the other. This is not a new discover. So, why do the artists who work on Dora the Explorer and Go Diego Go find it so hard to be accurate?

Red and Blue are not adjacent. The colours on the edges of the rainbow are not yellow and green.

Why is this important? Dora and Diego are for children. There is supposed to be some educational aspect to the content. And if the content is factually incorrect what does that say about science education. It doesn't matter? We shouldn't care?

If you are producing an entertainment for children you have an obligation. You can create a fantasy world, but it must be internally logical. We can suspend disbelief, but there must be a logic that we can use to support this new world.

The worlds of Harry Potter and The Lord of the Rings are incredible imaginative and detached from our world, but they have a strong internal logic and things and people in those worlds obey a set of rules that are unique to those worlds.

Dora and Diego have broken that cardinal rule, and I don't know if that is forgivable.