Or maybe it's just geometry. Kids play with shapes, and triangles happen to be a simple shape to draw and recognize. I'd wager the so-called 'code' of hopping is more about physical coordination than indoctrination. Sometimes a hop is just a hop.
Honestly, the most logical explanation about your socks is that they're simply being misplaced or falling behind the dryer. Occam's razor - the simplest explanation is usually the right one. As for the froot loops, it's just a case of common misremembering. Our brains like patterns and 'fruit' is the …