What are fingers and toes for?

Answer 1

Toes came about because they were useful to the early mammals to dig shelter burrows, grip the ground when running (Sort of like a tractor tread), and to have a number of nails to help in the above. Later ... much later, the short mammalian toes grew longer and more flexible as a result of changes, like standing up when walking. Longer toes were very helpful in balancing while erect.

At some point, for a certain small group of mammals that we call primates, it was useful for the toes to have the most inner toe wrap around opposite the other toes so that it was easier to grip a branch, and perhaps swing from tree to tree. This quickly led to longer, more efficient toes. At this point, you could say that this small group of specialized species of mammal had hands all around. As walking and running standing up became the standard way of getting around, these new subhumans had what we call "hands" up top, and feet down below, for walking.

This led to an explosion of new skills for the species because of this ability to grip things with an opposable thumb. It is from these small but extremely useful changes that intelligence grew in leaps and bounds, leading to larger brains, which led to more skills, until today, this changing species can send text on a telephone with just one of those opposable toes, which are now known as fingers.

On the lighter side:

We have fingers and toes to count or we can use a calculator in math class or in science class when we divide or multiply numbers.