If you train a cat to walk on a leash early in life, you can take her for a walk. Or let them run free in the garden in a controlled manner. This way you can keep an eye on your furry companion and can be sure that nothing will happen to your cat and that it can still go outside. This is ideal for residential environments where there is a lot of traffic.A leash can also come in handy when you take your cat on vacation, e.g. to a campsite. Because that's how she can walk around without running away.