because they do
To protect the animal from their environment. And wool IS that "thick coat of hair" you mentioned.
thin steel wool
Sheep which are classified as "carpet wool" breeds are those which have a thick wool fibre (also known as coarse or strong wool). An example of a carpet wool breed is the Romney. Other classifications of fibre diameter include fine and super fine.
Because if someone sits on them it will get hurt without the wool
Mohair is the fleece of the Angora goat. This is a goat that is bred for the use of the hair, it is not as thick as wool therefore it is called Mohair.
Merino wool regardless of its origin is available in many yarn weights.
guys its wool
yes
A bale of wool
A bale of wool
Once the sheep have developed thick coat of hair, the process begins with removal of hair along with thin skin layer is called shearing.