About the words "Speed" and "Velocity"

Physics guys closed these questions so I am here

From our daily experiences we know that whenever a body is moving with certain speed, it is always associated with a certain direction. How can you move and do not have any direction?

So my question is why did we introduce the term velocity? We could have considered Speed as a vector quantity and its magnitude- a rate, as a scalar quantity. In this case, speed will be a complete definition specifying both magnitude (i.e. rate, scalar) and its direction. This looks more intuitive and aligned with day-to-day human experience.

Then why we introduced a new term velocity? I would like to know the philosophy behind this!

There is a question on speed vs velocity, but it's not answering my question.

If you drive around aimlessly starting and finishing at home, your average speed might be 30 but your average velocity 0.