a cat sitting on top of a cement block

Cat leashes are used with the purpose of preventing the cat getting lost. Unlike dogs, cats rarely attack persons on the street, so cat leashes are mainly a safety measure to protect the pet itself. Very often the collars are replaced with harnesses, because they avoid the dangers of collars which include escaping and running away or choking. Cats are more likely to not be willing to be walked in a harness than dogs are, and are considered to need up to months to be able to adjust to wearing a harness. // CC0 Public Domain Image