ELI5. Why do mirrors flip the image horizontally and not vertically?

Question

ELI5. Why do mirrors flip the image horizontally and not vertically?

In: Physics

Answer 1

Mirrors don’t flip an image. They just reflect what’s directly in front of them.
Imagine painting your body with blue paint and then walking into a white canvas. What would the canvas look like? Your feet would paint the bottom, your head would paint the top etc.